Best way of learning electronic music (including synths, both modular and non-modular) for me has been to have some idea in mind, then figuring out how to translate that to the synth I have in front of me. Currently experimenting with dub techno, so first step is figuring out what sounds are usually used, then recreating the classic synth chord stabs on a Summit, and take everything step by step but adjusted to what I want the end results to be. I've found this perfect because it's usually what I want to be able to do in the end, I have some sound in mind, I just need to adjust the hardware the right way to get it.

Basically the same way I've learn programming ("I want to be able to do X, what steps would let me get the closest?") where you start with the final result, then work your way backwards.

ChatGPT + Search tool been very helpful in figuring out the details.