Hi, I’m new and if I’m posting in the wrong place, please move the question.
And I see you’re in control of this matters.
My problem is that I have Ubuntu which coexist win11. I got several ntfs and ext4 partitions containing steam games.
Even though they are mounted with permissions, steam refuses to see them. I know I should end win11 and start over but it’s fun to try.
Regards
ms
Permissions used with a Linux OS are irrelevant to windows as they are not used or understood by the windows filesystem so I would not expect you would be able to access any Steam games on a Linux partition from windows . You will need to be more specific about the problems you are having. Are they not seen or accessible from windows or from Ubuntu or both? How do you try to start/run your Steam games and what warning/error messages do you see if any?
Using both windows and Linux filesystems on Steam is apparently not recommended as the filesystems are very different so the software is also different an not compatible and this is discussed at the site from the link below. The site suggests a method which may work or at least help but repeats that it is NOT recommended.
https://github.com/ValveSoftware/Proton/wiki/Using-a-NTFS-disk-with-Linux-and-Windows
Are you aware of Bazzite Linux which comes with Steam installed. You might try that on a USB if you have no luck with other methods.
Have you gone to the Steam site or forums to search for answers? I would expect better luck there. Also, I expect a moderator will move your thread as the original was dealing with Steam on Linux filesystem and not windows and Linux.
@meatysalomon Welcome to Ubuntu Discourse 
As @yancek pointed out, yours is not quite the same issue as the other topic. Therefore, I have moved the posts to their own topic for better support.
Thanks