I do games that revolve  around music and sounds and I want them to be as immersive as possible.

One thing I like is implementing acoustics : room reverbs, echoes, stereo panning, doppler...

In my next game I want to push it further. That's why I'm asking for your tricks to achieve this : how do you chose and dial sounds effects, what are the perfomance issues to avoid, what are the design tricks that make your games be immersive... Especially if you use Godot like me.