I am surprised why it's not implemented.
Back then in TIM3, there was the option for 2 people to create/work/solve puzzles locally on the same pc.
Sometimes when streaming or screen sharing, someone tries to give a suggestion how to solve a puzzle, it's very confusing and difficult to understand what they mean. With remote play, they can take over the mouse briefly and try out their solution.
Please concider impelenting it.