Judging by the web.dev page this seems to be pretty well done though. Permissions are only granted to a subset of files and new sessions will need to ask for pe

Judging by the web.dev page this seems to be pretty well done though. Permissions are only granted to a subset of files and new sessions will need to ask for permission again. LocalStorage is okay but a user might not be aware when LocalStorage is cleared (f.ex. they might accidentally clear it when deleting cookies). Cloud Storage might not be in the user's interest in terms of privacy. You kinda have to add some export/import functionality on top in both cases.