Correct, but vinyl has its own distinct sound due to imperfections in the vinyl, the type of phono preamp, the kind of cartridge used, etc. I’d rather listen to vinyl through a real stereo, so I wouldn’t be in the market for a babelpod like device anyway. I’m aware with how AirPlay down samples anything higher than CD quality to CD quality.Bluetooth is lossy, doesnt allow you to stream to multiple rooms/endpoints.
Getting analog audio onto a digital music streaming device is pretty edge case. the whole point of airplay and streaming more broadly is its controlled from a central device (usually your phone) and therefore a turntable or similar doesnt make a lot of sense.
airplay is also only CD quality so if you were looking to get the vinyl/tape/analog hi-fi sound, its still gonna only ever be as good as a WAV file.
did you look at the picture? it is optical out.
I have a real stereo (vintage modded hafler gear for amps and preamplifiers, Ohm, Boston Acoustics, EV, and some other speakers) that I use for serious listening, but a stereo pair of HomePods sounds pretty good too, especially for their size.