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