You DO realize that a port is not just as simple as picking the dropdown in your editor to compile for switch versus xbox versus PC, right?

There is a substantial amount of effort to do any kind of port. And for one where the default experience is a 1080p handheld display? The kinds of games that only have M+KB support (because people are also forgetting the “KB” part…) are not the ones that run the best on tiny screens.

Don’t get me wrong. There are definitely corner cases. But we literally went through this with the Steam Controller a decade or so ago (15 years?). Consoles are a giant part of the market and targeting xinput gets you an interface that works on all of those AND improves the experience for a lot of users on PC. Versus finding a way to downscale your input to just a mouse and 8-10 buttons?

The number of third parties that meaningfully benefit from the switch-mouse are going to be very small. And most, if not all, of them will also have gamepad support for people who don’t want to have to sit at at a table with a surface that is compatible with said switch mouse.