It’s a lot easier if you have an office job, even easier if you’re full time remote. My experience has been the first round is over the phone, in which case before the pandemic I used to just go find an empty meeting room or go out to my car to take the call. For in person interviews, I’ll “have an appointment” and take a half day.
There are organizations that purport to be Yelp alternatives, such as Open Reviews Association, but I haven’t seen anything with widespread integration or adoption. It’s a cool idea nonetheless.