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Flatcar Container Linux vs Ubuntu Linux comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 25, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Flatcar Container Linux
Ranking in Operating Systems (OS) for Business
41st
Average Rating
8.0
Number of Reviews
1
Ranking in other categories
No ranking in other categories
Ubuntu Linux
Ranking in Operating Systems (OS) for Business
2nd
Average Rating
8.6
Reviews Sentiment
7.3
Number of Reviews
152
Ranking in other categories
OpenStack (1st)
 

Mindshare comparison

As of November 2026, in the Operating Systems (OS) for Business category, the mindshare of Flatcar Container Linux is 0.9%, up from 0.7% compared to the previous year. The mindshare of Ubuntu Linux is 8.3%, down from 10.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operating Systems (OS) for Business Mindshare Distribution
ProductMindshare (%)
Ubuntu Linux8.3%
Flatcar Container Linux0.9%
Other90.8%
Operating Systems (OS) for Business
 

Featured Reviews

YD
Senior Consultant at Capgemini
The solution is stable and allows us to make needed changes
The development teams could sharpen their skills.  They should offer applications on the net I have eight years of experience with Flatcar Container Linux. The version of Flatcar Container Linux that I am using is stable. The scalability of this product is fine. It allows us to make the needed…
reviewer2728158 - PeerSpot reviewer
Associate Cloud Operations Engineer at a tech vendor with 501-1,000 employees
Good compatibility and improvement needed in migration process
For long-term support, it has been good because in most enterprise environments, people still use Ubuntu Linux sixteen, which is quite obsolete now. Other enterprise versions do not support obsolete systems, so supportability is good in terms of Ubuntu Linux. For sustainability, it's quite a significant point of view for every organization. For us, Ubuntu Linux is the preferable way. For others, it might not be, so that is quite a subjective matter itself. The pinpoint of the problem is that they take time because they need specific information. We need to go to AWS first, and then they'll contact the Ubuntu Linux support team itself. This creates a two-way hop for us, which is why it's not that great. It's not really Ubuntu Linux's problem but rather the way we are accessing Ubuntu Linux. The migration part when migrating an application or one version of Ubuntu Linux to another is quite hectic. During the process, one or many applications might crash. That is something they could handle themselves, but I don't think that's something Ubuntu Linux will look into. During a migration project that I was handling, Ubuntu Linux was not completely compatible for the migration process from one application to another. This is an area they could improve in migrating from minor versions to major versions.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Flatcar's support is good, and the version I am using is stable and allows us to make needed changes."
"The GUI is user-friendly."
"Ubuntu is very widely used and you can easily get help and technical guidance from community members, and support for the hardware drivers is there."
"If people are scared of Linux machines they don't need to be, it is as simple as Windows."
"Try Ubuntu. Seriously. If you are looking for a good Linux distribution with a large community and lots of packages, Ubuntu is the way to go."
"It is more powerful because you have more control over it."
"The most valuable features are that it's free and that it is simple to use."
"The solution is easy to install."
"The solution is very stable, it's great for security and it is very safe."
 

Cons

"The development teams could sharpen their skills. They should offer applications on the net."
"Ubuntu is putting great efforts into making their platform a great hosting platform for Kubernetes and other related tools, but they are not addressing the challenges with what it takes to run Ubuntu in a large Windows-based environment."
"The solution could improve by being more user-friendly, you need to know how to use the command-line interface which you might not understand."
"On the gaming side, things are happening but there are some games that should be ported to Ubuntu."
"Stability is a big issue in my opinion."
"A problem we have encountered when installing the package is that certain packages are not available, which requires downloading of them on our part."
"Its interface could be improved and made richer."
"I would recommend they improve the network security, because it can be very difficult. I mentioned that when you upgrade Ubuntu, the network cut is always deactivated, so you have to restart the service to reactivate the network. It is important to improve this ability."
"The solution's initial setup is complex, and its technical support is not very good."
 

Pricing and Cost Advice

Information not available
"Ubuntu Linux is free."
"The solution is free."
"I am not in a position to comment on the licensing, as we mostly make use of the free version."
"Ubuntu Linux is more affordable than its competitors."
"There are no licensing fees, it's an open-source solution."
"This is a free solution."
"​Old equipment works for at least two or three years more, which means a significant savings.​"
"I am using the free version. There is no subscription."
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Top Industries

By visitors reading reviews
Comms Service Provider
26%
University
12%
Construction Company
9%
Manufacturing Company
7%
Comms Service Provider
13%
Financial Services Firm
10%
Manufacturing Company
9%
University
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business86
Midsize Enterprise22
Large Enterprise54
 

Questions from the Community

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Which would you choose - Ubuntu Linux or Oracle Linux?
Ubunto Linux is a complete Linux operating system that is freely available with both community and professional support. This solution is suitable for both desktop and server use. It has a very app...
What is your experience regarding pricing and costs for Ubuntu Linux?
My experience with the pricing, implementation costs, and licenses of Ubuntu Linux shows that it is free software, so the licensing cost is zero. Having the Ubuntu Pro licensing option, where you h...
What needs improvement with Ubuntu Linux?
I think Ubuntu Linux could improve in the area of packages, as Snap packages are being imposed on us and we are migrating to certain versions where we are losing APT. To have a pure terminal experi...
 

Also Known As

No data available
Ubuntu
 

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