i cannot help as i do not know the arguments of snapper. Maybe try specifying the snapshots subvolume by hand? Or force it?
Worst case scenario: Restore the snapshot by hand, delete the .snapshots subvolume, reinstall snapper, which i think also makes the .snapshots subbolume.
No, it's just people being dumb and forgetting this is not typical social media. Like, i can say fuck here as i just said; no need to censor. As long as you respect the community and instance rules, go wild! Say whatever the fuck you want.
Use a VM if you must.