I've been pretty happy with Unifi's "In-Wall" AP (e.g. https://store.ui.com/us/en/category/wifi-wall/products/u6-iw): PoE powered, has four downstream RJ45 ports (one with PoE itself), and is a side-firing WiFi AP as well. Like the sibling comment said, they're made for hotel rooms, but I've never been in a hotel fancy enough to use them (possibly because the RJ45 sockets aren't particularly discoverable, being on the bottom). It doesn't live in a power outlet, but it's meant to be mounted at the same height. Worked great for my home office. (I'm not associated with Unifi, just happy with their gear)
Yeah surface mounts aren't bad. Combined switch and Wifi is good.
Seems like for discoverability you'd have to mount it backward or upside down somewhere so that people can see the ports, and then what about the wifi signal? I see what you mean.
