I have configured backups on OPNsense to go to Google drive and it works fine when I click Setup/Test Google Drive.
How often are backups sent there? I'm a long-time netgate pfSense+ user and trying out OPNsense as I have new hardware. In pfSense, backups can get done after every configuration change, is it the same with OPNsense? I made a configuration change, and saved it, but notice that a new backup file doesn't appear in Google Drive.
Or is it on a schedule? If so, where's the schedule and can I change it to every configuration change?
I believe is not on a schedule but after every configuration change. It should work in theory the way you have it.
The docs state that it will happen once a day only after config changes. If I remember correctly, it is about 00:00.
There is an option in cron called "remote backup" but I never used it.
I believe you're right :)