Suddenly can't write to any network storage (TrueNAS/Seagate Personal Cloud/Offsite)

Turns out this is an issue with KDE. There should be a patch out there that is either coming soon, or is already ready for download. Being on bazzite, I don’t seem to have the update yet. So OP see if you can update KDE to 6.19.1.

Credit goes to gsstratton on discourse bazzite forum