Yes, this is seems to be the case for the most part, though I'm still exploring the "garage gym athlete" community. Turns out there are lots of garage gyms and a decent number of garage gyms have been outfitted by people who prefer/need to train at home, "ex-CrossFitters", etc. I think there's something here, but I don't have it fully quantified yet.
> edit2: and thinking about it more, I am not sure what will other "normal" gym people think when I do the AMRAP thing and jump around gym. Hm.
Haha. Been there myself. I find that it's important to build a small station with everything at arms reach in a "normal gym" setting so that it doesn't get taken by others.
In either scenario, though, you will be an outlier...but that's not a bad thing :)