I know nothing about this stuff personally.
But I always seem to read similar stories; you must know about them too.
And now, here’s another, latest appraisal (comparing to CLAP plugin integration):-
UltraDAW now support VST3 / CLAP plugins - Maksa Net | Boosty
Here’s one quote from in there… "Steinberg’s own documentation system is completely confusing - a bunch of sites, a ton of links. Of the ton of SDK files, you actually need 3 dozen. Very difficult. With CLAP, the situation is completely opposite - everything is simple and clear." (my emphasis).
Any chance of putting some focus into even looking at making this part a heck of a lot easier for 3rd party host developers..?
It’s up to you.
(I do want VST3 to properly succeed by the way - just that I’m seeing ‘barriers’ that could be broken down to help matters…)