For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Dropbox - Online Sync and File Sharing
Borg Backup - Deduplicating backup program with compression and authenticated encryption
Google Drive - Access and sync your files anywhere
BURP - Burp is a network backup and restore program.
Mega - Secure File Storage and collaboration
Restic - Easy: Doing backups should be a frictionless process, otherwise you are tempted to skip it.