[udp]

I can’t imagine not being in the “multi DPI” scenario though? It’s not some edge feature that affects a minority of power users, it’s just plugging an external display into a laptop. The DPIs almost never line up - not since high DPI displays became mainstream about 10 years ago.

[bee_rider]

I think this is more niche to care about than you might imagine. First off, a huge % of the population barely knows what an HDMI cable is and just doesn't plug their laptop into anything. Second, office workers might have a nice docking station setup, but in that case you are probably basically turning the laptop into a desktop (with a keyboard, mouse, and nice monitor) -- why bother with the laptop screen at all? Finally, perfect DPI matching isn't really required -- a 1080p laptop with a 1440p monitor should probably be fairly reasonable looking for most normal screen sizes.

[pjmlp]

Because it is yet another screen to put stuff on.

[bee_rider]

Sure but it is a small one, and designing a way to place it ergonomically is going to require some extra effort.