Hang on a Mo.. Ventura Volumes?

I’m running Monterey.

This is what Disk Utility shows for my M2 Air.
image

Where the ??? did Ventura volumes come from?

Sounds like you have two partitions there and thus two installations of the OS.
Did you maybe install Ventura to test on the second partition?

Well, Im not as young as I was, but I don’t recall doing that.
Ive only had this machine a few months.
I’ll have a look to see what is on this

Did you install Monterey on top of an existing Ventura installation?

Something along those lines must have happened.
Maybe when I did a Time Machine restore from my previous machine, if this new one arrived with Ventura pre-installed.
For sure, there is a (small) partition which boots into a clean Ventura.
Oh well, I guess I cant complain… its an easy place to test Ventura compatibility for my apps!