That Google/Android tracks everywhere I go, sends me an email at the end of the month about it, and still can't silent/remind when I get into proximity of a location bugs the shit out of me.
That tracking that's so profitable for them is an afterthought when it comes to my own convenience.
I mean, Google Assistant absolutely supports location reminders. Just ask "remind me <x> when I get to work" and it'll... mostly work. Sometimes it's a bit late, but it mostly works. For silent, I think that'd be more of a Tasker/Automate thing, like OP.