That's how I do it, I copy the BE of all databases at least once a day.
I have that process automated through backup software.
And if there is extensive use, I do more often just to be on the safe side.
I keep may be 5 or 6 copies so I can go back a while if needed.
It is not unthinkable that wrong entries will cause a problem so I want to
be able to go back and check where and what went wrong. So it's not
just about corruption.
I haven't had a corrupt back end in many years, but if it should happen I can
just set the most recent one back.
I have never bothered to backup from within Access.
Catalina