It used to support it though. I could tell it to remind me of something when I got home or something like that, and it'd pop up the reminder when the GPS coordinates matched up.

No idea if they removed that functionality (you never know with Google), or if Assistant is just being shitty here. Either way, something changed somewhere along the line.

it's still on google, because people expect it to be able to do such a basic thing and there is absolutely nothing preventing them from implementing it.