I use 4K + cheap low res monitor. The cheap monitor is for presentations - presenting stuff on a 4K usually leads to lag and doesn't look nice for people on th

I use 4K + cheap low res monitor. The cheap monitor is for presentations - presenting stuff on a 4K usually leads to lag and doesn't look nice for people on their laptops. It works for things like documentation/Postman. The 4K is great for side by side code/comparing, or reading PRs. A 4K monitor often works as well as two smaller monitors, especially if you work with something like Android Studio where code is on the left and resulting design is on the right.