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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
39th
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
7.4
Number of Reviews
151
Ranking in other categories
OpenStack (1st)
 

Mindshare comparison

As of May 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 8.0%, down from 13.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operating Systems (OS) for Business Mindshare Distribution
ProductMindshare (%)
Ubuntu Linux8.0%
Flatcar Container Linux0.9%
Other91.1%
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."
"Flatcar's support is good, and the version I am using is stable and allows us to make needed changes."
"Some of the main features of this solution are it is less prone to viruses since most viruses are written for Microsoft software, and it is easy to use."
"What makes Ubuntu easy to use is the large set of applications and the interface."
"There are several manuals online that are free and available to help you."
"I would rate Ubuntu Linux a nine out of ten as a total rating."
"We plan to increase the usage of Ubuntu Linux."
"My total rating for Ubuntu Linux is ten out of ten."
"It is stable and quite easy to use as compared to other Linux operating systems. They have created a system like Windows. It is simple and without any problems."
"Stable and easy to use solution."
 

Cons

"The development teams could sharpen their skills. They should offer applications on the net."
"The development teams could sharpen their skills. They should offer applications on the net."
"Developing more applications for businesses could work better, but that is not part of the OS piece. Let the developers work on other apps, therefore the needs for consuming less memory do not affect the performance of this OS version."
"Stability is a big issue in my opinion."
"They can make it user-friendly. It is not totally user-friendly."
"The solution must provide more integrations."
"We don't have any support, so we search for answers online. However, it can sometimes be a little messy to find the information if you have a highly specific question or a strange problem. It would be nice if finding information were a little simpler. Maybe they could have some portal that could point you to where you can find information."
"Ubuntu Linux could improve by having better documentation because sometimes their documentation is not very good."
"Like most Linux systems, they can just keep increasing support in Ubuntu for hardware systems."
"The product must enable automation using AI."
 

Pricing and Cost Advice

Information not available
"Ubuntu Linux is an open-source operating system."
"I am using the free version of the solution."
"We don't pay a licensing fee for the solution."
"The use of the solution is inexpensive and the hardware it needs to operate can be priced very low. There is not a license for the solution but there is for the hardware."
"It is open source, so it is free. There is no licensing fee."
"The solution does not come with a licensing fee."
"The solution is open source, so there is no licensing fee."
"It is also manageable and financially affordable."
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Top Industries

By visitors reading reviews
Comms Service Provider
15%
University
11%
Manufacturing Company
9%
Construction Company
9%
Comms Service Provider
11%
University
10%
Financial Services Firm
9%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business85
Midsize Enterprise22
Large Enterprise52
 

Questions from the Community

Ask a question
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 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.
What needs improvement with Ubuntu Linux?
The user experience on Ubuntu Linux is very good, so I believe there is no need for improvement.
 

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: May 2026.
893,221 professionals have used our research since 2012.