With the official reveal of the mouse mode for the Switch 2’s controllers there is the potential for so many classic games to flood the console.
Imagine what it could do with graphical adventure games, RTS games, management sims, etc.
We already know CIV VII will use the mouse, and I just hope this is just the beginning for a whole range of traditionally non-console games to finally make it to the platform.
I doubt that no one will use it. If you make a good input method that works with a decent variety of games, some will switch to it. Perhaps Nintendo could even sell some sort of tray/mousepad that lets you use the mouse decently well while sitting on the couch. It seems odd, but I think it has potential.