so, class compliant usb-c audio interface wired for 3-5v power on TRRS 3.5mm?
does seem like a useful device profile, all very portable form factors
rode makes one (though for iOS, and i am only assuming their “smartlav” pinout is compatible [*])
i’m sure there are more, though a bit surprising that quick search isn’t revealing them. (e.g. i’m surprised IK Multimedia hasn’t added a profile like this to their endless series of “iRigs”)
FWIW, i’ve used a zoom h4 as portable USB interface with 5v mics.
[*] wild guess that the proliferation of nonstandard pinouts could be one obstacle to productization of something like this