Obviously I’m gonna encourage you to play, we love having people. But I will say that if you don’t want the pressure of playing, but still want to learn, I am notorious for writing a whole bunch of analysis in the God thread as things move along. I reckon spectating will give you lots of learning opportunities with no pressure :)
Signing up as a replacement also works; Kakarot was a replacement in M70 and never actually subbed on, so he essentially spent the whole game analyzing everything, sending thoughts to the God thread, etc. just like a player.
Selfishly I want you to play, but if you want lower stress alternatives to help learn the game, we have them in spades :)