What filesystem is currently best for a single nvme drive with regard to performance read/write as well as stability/no file loss? ext4 seems very old, btrfs is used by RHEL, ZFS seems to be quite good… what do people tend to use nowadays? What is an arch users go-to filesystem?
Realistically you aren’t going to notice what filesystem you use, be it XFS, ext4, etc. Aside from fringe cases it really doesn’t matter. Don’t waste brain cycles on the decision.