What upsets me about the move to big sur and then monterey is that the upgrade program should check that i have apache, php and mysql and if it finds that there it should stop and say: hey man, this upgrade is going to create problems for you ... do you want to think about it before you proceed?
So what I'm going top do now is upload the (daily) backedup MySQL database to a hosting service that will also support PHP. Then I'll find the time to work out how to migrate my admin systems to Monterey - and then buy a new Macbook Pro - after I know how to migrate to that environment.