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?
If you really care about high performance on an SSD, use f2fs. This filesystem was made for SSDs specifically. Though ext4 and xfs are also really solid and shouldn’t be that much slower. But if you do care about squeezing out every bit out of performance, f2fs is definitely worth trying.
It’s a bit more experimental, yet I’ve been daily driving it for maybe a year or so at this point and it never caused trouble once, even with cutting edge mount options.