One of the worst cases of this that I've seen recently is TP-Link's Tapo, which does seem to support ONVIF to a usable extent, but it is impossible to set up th

One of the worst cases of this that I've seen recently is TP-Link's Tapo, which does seem to support ONVIF to a usable extent, but it is impossible to set up the camera or move it to a different wifi network without using their stupid mobile app that requires a cloud account. It works fine offline after that.