RDP is indeed terrible for anything involving video or 3D, but there are companies out there that specialise in much lower latency desktop streaming. As an example Parsec started out focused on allowing people to run AWS instances for gaming rather than having a beefy desktop at home, but appear to be pivoting into remote desktop access for creatives: https://parsecgaming.com/teams/

Maybe something similar to how Stadia and xCloud work?

(1) Reduced overhead for the company. With virtual workstations they don't have to supply and maintain a specific machine for each employee.

(2) There are many protocols that are much better than RDP for sending a high resolution display feed over the internet (such as offerings from HP, VMware, and Teradici). Also RDP has improved a lot in that regard if you haven't used it in a while.

Simple remote connection as they do now (aside from the terrible quality), gets tricky from a security standpoint: as far as I know, nothing stops you from just getting source file from the workstation to your local machine. Workstations usually have USB ports locked/disable to avoid this. I imagine this solution will also help work around this...