Trailer editor Chris Salters has posted 2 remote collaboration workflows, one free and one including a second computer. Great to see an almost free solution and a much more robust solution as well as solutions better than Zoom though much more expensive (starting at $399 a month).
I like that he sets up a solution that will work with other programs as well.
The budget solution creates a new video monitor which means you are eating more of your precious video memory, which worries me a little, but for screening should be ok.
And the other solution requires another computer and some hardware, so might be more for where companies can provide hardware.