A decent window management tool (e.g. Rectangle.app) should resolve most of your window management issues - set up many drag points to easily divide windows by

A decent window management tool (e.g. Rectangle.app) should resolve most of your window management issues - set up many drag points to easily divide windows by half, thirds, quarters, sixths, etc. Most screen share apps should support sharing by window. Also best for privacy (so your viewers don't see the side channel chat notifications pop up). Also an ultrawide monitor is preferable for spreadsheet warriors. I will not give up my 49" 21x9 for anything lesser.