Cubase 12 does not open now

I agree, it could be resolved on 13 or 14 or never and will not be relevant for users which have unsolved problems with 12 or earlier versions.
But this goes for every DAW.

What I am trying to say is that if there is a problem that can’t be fixed by user tweaking and needs to be adressed upon development then there is not much one can do but choose if he will continue supporting his DAW and wait for possible fixes on problems or go with another DAW (and its possible issues).