Is there a way to get a wah wah effect that can be controlled with an envelope instead of being fixed to an LFO?
Not with the built-in Wah wah effect.
Modulated by the envelope of the music, (rather than a separate manually adjustable control track).
https ://www. kvraudio.com/product/classic_auto_filter_by_kjaerhus_audio
https://youtu.be/tNhb3N9U4dM