I'm not seeing anything here that makes me think "this is good design", but maybe I'd need to sign up for each product. I saw some cute landing pages and some Typeforms. Were you directing to me to something specific?
I guess I happen to be really focused on certain types of apps/services right now, but off the top of my head: Twilio, Heroku, Enchant, Robinhood, McMaster-Carr (which was shared on here recently), Linear.app. Probably a lot more, but these are apps that deliver a ton of complex functionality and make the components you need accessible easily without creating cognitive overload as a user.