Hey guys, I got some info from a super nice guy, Nick, from calling the Tesla support phone number just now.
It might help some of you on this thread, it might not, but at least it's something.
Regarding my car being stuck on 36.5.1, he said he has a suspicion it might need the camera upgrade before it gets the latest software updates, but he sent a message to the software team asking about my VIN and if there's a firmware issue or if I need the camera swap before it moves on from 36.5.1. I'm just waiting to hear back from either service or software team about that. Should be 1-3 days before I get an answer.
Then regarding the FSD download, he said after the camera upgrade it should ping the network saying "hey my car is ready to receive FSD" but if not, then he told me to email "fsdbeta @ tesla . com" (no spaces) with my name, info, VIN and safety score to ask them for the FSD download and they should be able to send it or explain why they can't. He said they've been really quick responding to emails so if I don't get the download after the camera swap, try emailing them.
I really hope this helps someone browsing this thread. Nick from the Tesla support number was insanely nice and seemed to know what he was talking about more than anyone I've ever talked to on the phone there.