I used the OP3 as a webcam for 2 different scenarios last night and I am impressed with its performance.
First, I used it to record a YouTube video. Capture Software was OBS, using Nvidia Broadcast app to add the virtual background, and edited in Premiere Pro. This is the trailer for the full video: [color=var(--blue-link)]
Second, I used it for a Facebook group livestream. Again, I used Nvidia Broadcast for the virtual background and then durectly streamed through Facebook.
There were no problems with overheating and I am pleased with the results.