I’m running Bazzite, which is immutable, so the root filesystem is read-only, but I’ve been having an issue pop occasionally where the rest of my filesystem, including my home folder, becomes non-writable. I can’t do much, and constantly get popups about folders being non-writable until I reboot, and then everything goes back to normal.
Does anyone know what can cause this to happen? And is there a way to deal with this without rebooting when it does happen? I don’t know when I’ll be able to try anything out since it’s not a frequent issue, but it has happened to me several times in the past.


Check your drive: https://wiki.archlinux.org/title/S.M.A.R.T.
Yes, but just because SMART does not complain does not mean the drive has issues. If it does, it means there are issues. That should be kept in mind.
Literally explained in the link.
Unless there is an above average drive controller on board, it wouldn’t be getting out into read-only and still accessible without triggering an error in online drive checks.
Just because the linked site does mention it does not mean it is not worth pointing out.