I would definitely be interested in a CLI approach, though extremely fearful of destroying the existing LVM Volume Group to create a new empty one instead!
Thankfully the devs are aware of the issues for less simple use cases, and have published that they may return to using the Expert-Partitioner for the storage section iirc.
I’ve no axe to grind. We have a saying ‘if sonething ai’nt broke don’ t fix it (unless you have something better actually ready to deploy). Also to err is human ;=)