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Flatcar Container Linux vs Ubuntu Linux comparison

 

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
33rd
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
3rd
Average Rating
8.6
Reviews Sentiment
7.3
Number of Reviews
150
Ranking in other categories
OpenStack (1st)
 

Mindshare comparison

As of January 2026, in the Operating Systems (OS) for Business category, the mindshare of Flatcar Container Linux is 0.9%, up from 0.5% compared to the previous year. The mindshare of Ubuntu Linux is 9.4%, down from 15.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operating Systems (OS) for Business Market Share Distribution
ProductMarket Share (%)
Ubuntu Linux9.4%
Flatcar Container Linux0.9%
Other89.7%
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…
Salim Ahmed - PeerSpot reviewer
System Administrator at mmcytech
Has supported secure application hosting and reliable server management
I find the GUI to be good in Ubuntu Linux, and I appreciate the open SSH. The fact that it is free since it is open and open-source is why I appreciate it and feel it is secured. We have multiple different kinds of support related to Ubuntu Linux, including official support and other options. I am currently using laptops, desktops, and servers, and Ubuntu Linux supports all these devices. If I need it for Raspberry Pi or something similar, I can download another Linux distribution. Ubuntu Linux is scalable, especially for servers. We prefer using Ubuntu Linux Servers rather than Windows. The biggest advantage of Ubuntu Linux for me is that it is open-source, secured, and scalable.

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. The version I am using is stable and allows us to make needed changes."
"For us, OpenStack is awesome. We want something that will be much simpler than a broad and complicated solution."
"The solution is stable, fast and free."
"The setup cost is free."
"The solution is stable."
"I find the Linux community very valuable and the fact it is open source. So it's free and I use it without any problems."
"The main distinguishing feature between Ubuntu and other Linux distribution is that Ubuntu has excelled at user-friendliness. It's very easy to use."
"The solution is free to use and open-source."
"What I like best is the way in which packages are managed."
 

Cons

"The development teams could sharpen their skills. They should offer applications on the net."
"I am really very satisfied with this solution. However, one thing that I would like to see improve, is to have better support for multiple screens with multiple resolutions. For me, that is the most important feature."
"Linux does not provide a user-friendly interface."
"The solution could be more stable and secure."
"The main challenge is restoring the system from a crashed state, which can be complicated for non-technical users."
"People with a Windows background may not find the solution's user interface user-friendly."
"We use and have previously used Windows 10 which is a lot better."
"Ease of use and ease of deployment could still be improved in this system."
"Ubuntu could be improved with more container integration and orchestration of those containers. We are looking to have more cloud-based solutions, like Docker, and container-based solutions, or Kubernetes-based solutions integrated with Ubuntu. Instead of going for VMs, we would like to have more container-based solutions on top of Ubuntu."
 

Pricing and Cost Advice

Information not available
"We are using Ubuntu Linux free of cost, and there is no licensing."
"The solution is open source, so there is no licensing fee."
"Ubuntu Linux is more affordable than its competitors."
"There is no licensing cost for the product."
"Ubuntu is an open-source Linux operating system that can be used free of charge."
"Ubuntu pricing is reasonable."
"Ubuntu Linux is free for personal use, including business use."
"I don't need to pay for the license."
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Top Industries

By visitors reading reviews
Manufacturing Company
16%
Comms Service Provider
13%
Computer Software Company
13%
University
13%
Comms Service Provider
11%
University
10%
Computer Software Company
10%
Educational Organization
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business84
Midsize Enterprise21
Large Enterprise53
 

Questions from the Community

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Earn 20 points
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 do you like most about Ubuntu Linux?
It has a good support system for loading databases.
What is your experience regarding pricing and costs for Ubuntu Linux?
My experience with the pricing for Ubuntu Linux is that I always use the free version, so I never paid for any installations or support.
 

Also Known As

No data available
Ubuntu
 

Overview

 

Sample Customers

CISCO, mettle, Microsoft, Upguard, GMX
Samsung, eBay, AT&T, Walmart, Cisco, Time Warner Cable, Bloomberg, Best Buy, Dell, Intel, Microsoft, Ericsson, Orange, Wells Fargo
Find out what your peers are saying about Red Hat, Rocky Linux, Canonical and others in Operating Systems (OS) for Business. Updated: January 2026.
881,082 professionals have used our research since 2012.