

To be fair to the internet discussion, Linus’s (and the other maintainers’) communication on this could have been better. Still, it should’ve been pretty obvious from the start that this is a sanctions thing, and people and companies don’t end up on sanctions lists for no reason – though it is easy to end up on the list if you have even indirect ties to the Russian state.
At the risk of stating the obvious, this shouldn’t happen. You haven’t said enough to know what the issue could be, but most of the time when btrfs spontaneously stops booting on you, it’s because it has dropped to read-only mode because it detected a problem with your drive.