Speaking from experience building most of a screen-sharing/presentation web app for a big-name company, there's no way one would be acceptable in this role as a

Speaking from experience building most of a screen-sharing/presentation web app for a big-name company, there's no way one would be acceptable in this role as a daily driver input device. There's just too much latency once you add in canvas transformations and all the mess that goes with that on top of input latency over a network.