The difference between a large enough single monitor with tiling window manager vs. multiple monitors is just a question of layout. There is no real difference

The difference between a large enough single monitor with tiling window manager vs. multiple monitors is just a question of layout. There is no real difference between those two. Also, I can “switch” just by moving my eyeballs which takes fraction of time comparing to using a button or pressing alt-tab. My whole point is you can work on a single task no matter how many monitors you have. And having more real estate makes it easier.