I found that 21:9 works very well for me for work (gaming too, mind you). Sheets can show many rows, I can compare things side by side, I can maximize a console

I found that 21:9 works very well for me for work (gaming too, mind you). Sheets can show many rows, I can compare things side by side, I can maximize a console with ridiculously long lines, and I can dock the dev tools in the browser to the side. It's a like two 5:4s, side by side, without the bezels.