OP's solution is for an old(er) relative to watch 2 camera angles. Again I say there are better solutions than Kodi to run a webcam solution.
Surely there is, but we live in different realitys. I don't have much money, infrastructure and knowledge to do it. Besides this all stuff needs to be imported (= long time to wait + taxes).
This resource is compatible with Libreelec in RPi? External players
I didn't try it yet, I'm far from installation now, but reading about I found someone telling that .xml in wiki is incorrect for vlc in linux systems.
So, if it works, someone knows correct spelling of that file?