Just wondering: is the installer still at 22.7 or does it actually include 22.7.1, eg ,,current" version, even though the name is 22.7?
The current installer can detect the system it is running in and display the correct information:
https://github.com/opnsense/installer/blob/master/src/opnsense.sh#L133-L134
Since there were no relevant changes in the FreeBSD 13-STABLE to 13.1-RELEASE transition the installer was not modified and keeps working correctly with either 22.1 or 22.7.
Cheers,
Franco