Interestingly having played around with macOS 27.2 and using Sidecar on an iPad for touch inputs, it looks like Safari isn’t going to send proper touch events like Windows touchscreens do. Best we get is mousedowns with no buttons=0.

Even worse testing in Chrome, all we get are scroll events. That’s fine for panning but if you want to do anything custom like drawing, dragging etc you’re SoL unless you want to try detecting these off heuristics. Maybe they’ll improve the situation before it’s in people’s hands, but curious to hear what other devs with complex web apps are planning on doing.