[seanw444]

More of a mnemonic in my case, not just homerow, but yeah launching frequented apps has never been more fluid than when I switched to my tiling WM.

[perihelions]

You can also get most of this configuration-free in Gnome. [Super] key switches to a spotlight context; one alphabetic letter focuses the most frequently used app with that prefix; and [Enter] key launches it without prompt.