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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
34th
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 February 2026, in the Operating Systems (OS) for Business category, the mindshare of Flatcar Container Linux is 0.9%, up from 0.4% compared to the previous year. The mindshare of Ubuntu Linux is 9.0%, down from 15.1% 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 Linux9.0%
Flatcar Container Linux0.9%
Other90.1%
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."
"Ubuntu Linux is more secure and has additional security features than some other operating systems."
"Windows needs a refresh option to refresh its screen, but Ubuntu doesn't need that. It refreshes automatically and works well."
"The main distinguishing feature between Ubuntu and other Linux distribution is that Ubuntu has excelled at user-friendliness. It's very easy to use."
"It has improved our ability to carry out maintenance without downtime as migrating services between server environments is largely seamless."
"The solution is very stable, it does not need to restart to maintain stability."
"The solution has a very good graphical user interface."
"Of value is that the solution is stable, easy to use, has features that are easy to connect to other Linux systems and can be managed and administered."
"The feature that I have found the most valuable is that it is open source. It is also very easy to manage. We can manage it ourselves."
 

Cons

"The development teams could sharpen their skills. They should offer applications on the net."
"We'd like to have a bit more of a friendly user interface."
"If the user interface were further improved then it would be better because more people would be able to use it."
"On the desktop edition, we'd like more themes."
"There is room for improvement, particularly in the GUI aspect of the product."
"They can keep improving the solution's ability to be adopted by users by adding features, such as better tutorials and integration into the system."
"At times, it can be complex when we are trying to integrate or when we are trying to set up some features."
"Ubuntu could add some additional hardware support."
"The solution could improve its GUI personalization."
 

Pricing and Cost Advice

Information not available
"On a personal level, I'm using the free version."
"We are using Ubuntu Linux free of cost, and there is no licensing."
"There is an annual subscription for this solution."
"I am using the free version of the solution."
"Ubuntu Linux is an open-source product that is free to use."
"Ubuntu Linux is more affordable than its competitors."
"The product is cheap compared to Windows."
"The solution is open source and its use is included in the monthly fees we pay."
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Top Industries

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

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 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.
881,707 professionals have used our research since 2012.