btrfs is the default for fedora workstation 35 and seems to work well for normal use cases. However it failed miserably when I tried to download the monero blo

btrfs is the default for fedora workstation 35 and seems to work well for normal use cases. However it failed miserably when I tried to download the monero blockhain, either through raw import or incremental p2p sync. The fix was simple - set the database directory to nocow, recreate the db from a backup and all was well. But btrfs has that sharp edge users need to worry about in case they do have a large, regularly written file (say, like a database) hosted on the filesystem. XFS never had such an issue.