My main interaction tool with the system is the pointer. Reaching out for the keyboard is something I do when I want to type, but for example when I am consuming content on my computer I just keep a single hand on the mouse or the trackpad. In that case shortcuts are just plain annoying.

On KDE, something nice is that if you have a maximized window and a panel on the top of the screen, I can drag that panel to grab the window (or maybe it was a setting of Latte dock or something). And since window titlebars nowadays can be cluttered with buttons, it is a predictable way to grab those windows only using the mouse.