From ones I've lived in and know others that have, they are all different as far as how "Active" they are. I had my shop in my garage and never got complaints, nor was there any covenants that stated I couldn't do otherwise. There were city ordinances for noise and storage of stuff outside, but that was it.
The biggest complaints I heard about in ours was folks that had boats/trailers and left them on the street for more than a few days. Those that would bring them home from the lake and then leave them parked on the street until the next weekend. But at the same time the folks that complained had teens leaving their car parked on the streets overnight, which was also against the rules.
On the flip side, I've lived in one that had covenants, but no active HOA to enforce the rules, so no one abides by them. Doesn't mean that one neighbor couldn't sue another to enforce it, but with and HOA, the dues allow budgeting of legal help to make them more effective.
Then you have the ones that are like my friend that just had a new roof put on. They made him tear it off and go with another color as the one he picked wasn't an "approved" color.
Not trying to scare you, like I said, they are all different. I'd check online to see if they have an active HOA and see if they have bulletin boards or meeting notes to see what type of "activity" they are doing and types of things are being enforced. Can also check with the Recorder of deeds or realtor to see if they have a copy of the covenants you can gander at.
To a small child, the perfect granddad is unafraid of big dogs and fierce storms but absolutely terrified of the word “boo.” – Robert Brault