> So in my case, I shouldn't dump Windows (and thousand of $$ I've spent on audio software).

If you mean that there's no Linux replacement for Digital Audio Workstation, then I agree: switching is not for you. But if what worries you are the $$ you have spent, you are just another victim of the sunk cost fallacy. The earlier you realize your mistake, the earlier you are ready to evaluate the options without biases.

most interesting part is to guess how many here complaining about a poor ecosystem on Linux audio, actually work professionally on the field

Surge-XT, Vitalium and/or PlugData or Cardinal can get you so far on the synthesis world that maybe not even a full dedicated lifetime can explore everything you can do with it... Ardour isn't a shinning pot for MIDI editor generational features but if you actually know music-theory, it works pretty solid for writing. the in-line editor makes very much sense, just like sheet music can hold an orchestra info. on a sigle page

I am not familiar with Digital Audio Workstation, but this seems a good use case for WinApps.