Trying to Set up PS5 Controller on Win10 with Star Wars Squadrons on Origin

When I try to use it, it works ... a little. Some things work some don't. Can somebody point me to instructions on 😇 how to set it up properly and (b) which controls map to which functions?

I am not using Steam. I'm using pure Origin. However, if the only solution is to use Steam, I will. But I thought I'd check first if I can do this on Origin. I know I can map each function one by one, but that's kind of a pain, and I don't have an official map of which controls mapped to which functions would be standard.

Any help appreciated.

Thanks!
-hb