I'm not the expert in this area, but the current state of play AFAIK in terms of working chips is:

- Morse Micro - Newracom - Taixin are mostly not compliant (but cheap) - Amazon have a proprietary not quite compatible HaLow in their Blink cameras

There's varying levels of interest in WFA compliance/interop. Morse and Newracom are the most interoperable, but even then there are gotchas.

The Morse ones, are, of course, the best ;)

Aside from upstreaming, one of the other things we're chasing is a better regulatory environment. In particular, the EU S1G bands are very tightly constrained.