I had a Samsung 960 Pro nvme fail without warning, that was even more concerning
Then shortly after I had a BTRFS fail without failing Hardware on another drive
Just backup your stuff with 3-2-1 strategy and you're OK.
I'd recommend a combination of syncthing, restic and ZFS (with zfs-auto-snapshot, sanoid or zrepl) and maybe bluray (as readonly medium)
I'm considering Amazon Glacier for offline backup. Any opinions, alternatives, or other advice welcome.