If you‘re comfortable with S3 then https://wasabi.com/ is a nice option.
You can do backups to S3 with https://github.com/restic/restic or mount it to your system using S3 fuse.
I don’t really think they will care about the data you put on there (you can encrypt it with restic) unless you‘re directly distributing pirated content via S3.
Google subscribe pending lemmy