This is not a SFW instance. NSFW communities will be tagged, and efforts will be made to keep SFW communities clean, but proceed at your own comfort level.
RustDesk brings true unattended remote access to Wayland, with multi-monitor support. A preview build for x86_64 Debian/Ubuntu-based systems is available now.
Maybe Polaris is what you’re looking for. It’s meant for game streaming. But of course you can stream whatever you want.