https://bugs.winehq.org/show_bug.cgi?id=48006
--- Comment #37 from Andrew Church achurch+wine@achurch.org --- (In reply to Sophira from comment #36)
After the 6.58 update, when using Proton 7.0.5 I'm now getting:
This service account does not have a valid FINAL FANTASY XIV license for this platform or your subscription has expired.
This is probably something specific to Proton, as the "hide exports" patch from staging still works to avoid that problem with vanilla Wine 9.x.
It looks like other people with Proton are having this problem too: https://github.com/ValveSoftware/Proton/issues/580#issuecomment-2007484564