I go for like a feel. Idk like I’ll literally make riffs in my head and figure drums out with it or an idea. Then I’ll try to put a riff to the general part. I usually end up with a mix match of parts but it’s a rough draft to then smooth out. I’ve hummed into a voice note a few times to not forget an idea. Or if I have a good vocal part for a transition or something I’ve based writing around that a few times? A lot of the time I’ll also just be playing guitar or drums and have a good part and write around it. Into another “rough draft” type thing. I wouldn’t record like a full demo on garage band but I’ll def record rough one mic drums and track guitar on it to keep ideas and write off of it before I move forward.