I have had two Sandisk 2.5 inch SSDS just suddenly fail. No warning that I could discern, and no way to recover afterwards. Both were while running Debian variants as a / partition, luckily I keep /home on a separate partition.
Any idea what that failure mode could have been? It worries me tremendously to keep data on an SSD now.
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)