very smooth and stable
butter fs is king
dude on kernel 5.4 I am total fan of butter. no letdown whatsoever! butter saved my daily driver disk of 200 GB . totally WOW! and it was just a € 30 disk yet 100% data retention. SANdisk + BTRfs = miracle performance ! I have an old original IBM disk that fared less well.
Oracle, Fujitsu and SUSE
dude, thats 3 hot countries lined up there: US JP GER !