I have something important to add.
The Dell EMC merger put all of us back on Windows and it has been a rough transition. I’ll say this for Dell though — their monitors and notebook screens are works of art.
Unfortunately Windows scales 4K about as well as I’d scale a model of the Eiffel Tower. It’s truly awful. Dozens of Windows apps render at 10–12 pixels instead of using a base calculation tied to resolution. At 4K a 10 pixel font is nearly unreadable.