With HA-Cloud you could easily create encrypted backup/restore of entire HA configuration (maybe even with selective restore) to Google Drive’s Device Backup feature (the same way WhatsApp does).
Hass.io addons are for Hass.io, not for vanilla Home Assistant. I don’t know if I can run Hass.io inside a Linux container in my Ubuntu server (my Home Assistant Linux container (LXC) uses a Fedora template).