I was mistaken in my previous post. I am using Wayland. Additionally, it appears they try to establish a connection, and eventually it’s dropped. As I see notifications on Linux saying your screen is being shared, and eventually saying it’s no longer being shared, followed by an immediate your screen is being shared.
I’m not sure if it was doing that before, or if it’s changed when I was tinkering to try and get it working. During this tinkering, I also noticed the screen share of the Linux from the Mac sometimes appeared white or black when starting it up.