Revert back to original operating system.

DoogyDawg wrote:

I have an M1 chip MacBook Pro.

It came with Big Sur.

I have updated to Monterey.

Is there anyway to revert back to the original operating system my Mac came with from the recovery mode/utilities without losing any files etc.

Thanks

No— this process you will lose all user data— unless you have a backup

The process would be the same as here—

Revert your Mac to a previous macOS version
https://support.apple.com/en-lamr/guide/mac-help/mh15216/10.15/mac/10.15

How to reinstall macOS from macOS Recovery - https://support.apple.com/en-us/HT204904