I feel like the best desktop interface I have used is Ubuntu's workspace implementation. Typically you have one app, e.g. your browser, per workspace and seamle

I feel like the best desktop interface I have used is Ubuntu's workspace implementation. Typically you have one app, e.g. your browser, per workspace and seamlessly transition between them using ctrl + alt + arrows. The animation is very snappy and doesn't get in your way. The workspaces are laid out in a grid (e.g. 4x4) so you naturally adopt a convention for where you place applications. For me, I have browsers and desktop apps along the bottom, terminals and IDEs along 2nd row and then GVim instances in the remaining top two rows. I can almost instantaneously switch between any window I like. I like this setup so much that when I was using MacOS for a brief period, I installed TotalSpaces2 which emulates Ubuntu style workspaces.