Any browser that supports "PointerEvents" I think will do it (canIuse indicates its all of the them..). There is a How it works section at the bottom, which is interesting:

"Modern browsers expose so called PointerEvents that can convey not only mouse but additionally stylus/pen and touch information. Weylus sets up a webserver with the corresponding javascript code to capture these events. The events are sent back to the server using websockets.".......

https://github.com/H-M-H/Weylus#how-does-this-work

a

Seems like it but the Steam Deck touch screen is horrendously bad though, so that wouldn't be very useful.