I'm convinced that the 2D auto-arranging grid menu (without spacing) is terrible UI design.
When you have a lot of applications, it's important to cluster related stuff together.
The problem with the 2D grid is that everything moves (and wraps around) in two directions every time you add or remove something. This hinders muscle memory, especially when using devices with similar but differing application loadouts.
The Windows 11 Start Menu is a UI disaster.

