On Ubuntu 18.04 I was able to get the camera working by using some gstreamer libraries from Lubuntu 16.04. I’ve put the stuff up on github but this is how you would try it from a terminal window:
Thanks for the info @Hank . I think I have a Ubuntu 20.04 ISO and will try booting my computer with it and try some things out. If it works then I’ll try downloading the Mint 20.1 iso and see if I can easily boot from that iso and test too.