Is the new V3 Wyze Cam RTSP capable?

Basically, yes. They have an Axis compatible API. I have posted a couple of times about redirecting Wyze credentialed streams to RTSP clients via TinyCam Pro and its web server. (I won’t swear whether it is technically RTSP.)

https://forums.wyze.com/t/rtsp-for-new-v3-camera/146016/20