Summary of the new feature
I want this new insiders button in the debug revamp:

to open PS Integrated console, if possible (explore feasibility)
First time I'm seeing this... it _looks_ like it's just a short cut to the Debug Console which has already existed... I don't think there's any sort of configuration for us to say "hey use this for that". But it's brand new so I may be wrong.
Not using the Debug Console is [a totally valid thing to do:

from https://microsoft.github.io/debug-adapter-protocol/overview
So they'd be hurting extensions that don't use it if they keep this not configurable...
Moved this over to https://github.com/microsoft/vscode/issues/94063