That may be an old issue, but I just set up a couple of NTFS drive Steam libraries on Linux last week and it didn’t give me any errors or warnings about the drive format. But I did have big issues with the Flatpak edition of Steam - it couldn’t even write to a local second ext4 partition. Had to switch to .deb Steam install to fix all that
You might know this already, but some (all?) flatpaks are denied access to most drives in the system. I’ve used Flatseal to address that issue when it comes up, though there may be better ways.
That may be an old issue, but I just set up a couple of NTFS drive Steam libraries on Linux last week and it didn’t give me any errors or warnings about the drive format. But I did have big issues with the Flatpak edition of Steam - it couldn’t even write to a local second ext4 partition. Had to switch to .deb Steam install to fix all that
You might know this already, but some (all?) flatpaks are denied access to most drives in the system. I’ve used Flatseal to address that issue when it comes up, though there may be better ways.