Quite right - no need for RTSP as TinyCam is about the only 3rd part app that works with Wyze gear natively.
This is an older document someone put together that may help as well. The interface has changed a bit and there is now support for camera names instead of having to modify the “channel” for each camera. Just make sure the camera model is “Wyze Cam” and the brand is “Wyze Labs”.
Also beware there are some shady apps using the TinyCam name. The real one is Android only and uses that TinyCamMonitor URL.
Edit: oh geez you fixed it already! 
“No worries”