I have several multi stream cameras and go2rtc works perfectly but on a fisheye style Hikvision DS-2CD6362F-I the log fills with ffmpeg errors. This camera has four selectable channels that correlate to the quadrants of the 360-degree field of view (as if there are four separate cameras). The fisheye camera only has one stream available per channel, BTW.
I have all the RTSP streams working via Frigate and Frigate card for all cameras but the go2rtc streams are much more responsive and better quality.