Auto-lock cannot be set to longer than one minute (iPhone 12)

It appears that a recent iOS update reduced the options for the auto-lock setting. There are now two choices - 30 seconds or 1 minute. I know there used to be at least one other option (maybe 3 minutes) because I’ve never had enter my passcode this often. Why was it changed and can it be changed back? One minute is much too short!! I work at home and am not around other people much - having to constantly unlock my phone is ridiculous.

Also, do not suggest that I use face recognition to unlock. This is not an acceptable alternative.