With hp shutting down anyware / teradici / pcoip there are quite a few people looking for alternatives that support high resolution multi monitor with 60fps high bit depth playback and things like wacom tablet support and all three OS. Parsec and DCV are out there on the spend money side. I'm excited about the open source efforts. Things like rustdesk,kyber, and teraguchi. The community needs an open source high performance option.
https://github.com/rustdesk/rustdesk
https://github.com/thedepartmentofexternalservices/teraguchi
FWIW DCV is free on EC2, and anywhere else it has a very minimal nag without a license.