here is a tip that only work if you are certain you will attend the meeting,
change the lobby behaviour. Change Who can bypass the lobby to ‘Only me’. All attendees will wait in a lobby till you join the meeting and admit everyone from the lobby. The meeting will start recording automatically from the time that you join. The meeting recording will then be saved into your OneDrive.
If I change the "bypass the lobby" to Only Me, then I have to monitor and admit all attendees - even those that are late to the meeting. It adds an additional layer of administration that I would rather avoid.
I agree this workaround is way more cumbersome than it should be - I have a large company meeting this afternoon that I'm going to manage by leaving my prior meeting 5 mins early and join/ start the meeting myself, and if anyone is already in there, I'll boot them out, leave and then restart.
Not ideal as I'd have to make sure the person I booted knew they would need to rejoin - particularly if it's an exec or the CEO!