Me too, I just use my macbook. I keep 2 buffers side by side in VSCode, and cmd-tab or cmd-` to switch to other apps/windows.

I genuinely suffer from imposter syndrome when I see my colleagues with several huge screens in all sorts of configurations. I guess I'm not a real hacker.

I can only look at one screen at a time anyway, so it's as fast to switch apps than to turn my head to look at a different screen. Plus if I want to move the cursor, I need to switch app anyway (or do a long trip with the mouse and click somewhere for focus which is even worse).