I can't blame your colleagues, in that macOS just doesn't provide good window management tools. But for my part, at least, I typically 'tile' my windows by han

I can't blame your colleagues, in that macOS just doesn't provide good window management tools. But for my part, at least, I typically 'tile' my windows by hand into thirds on my ultrawide monitor with Rectangle, then switch windows exclusively via fuzzy filtering across all windows rather than Command-Tab between apps. (I do occasionally still use Command-`, though.)