You make me glad I'm resisting Windows 11!
But I don't know how you could have missed the ease of launching programs in Windows 10 without the mouse. Here's how I've been running some common programs:
Launch command.exe:
1. tap Windows key, type cmd <ENTER>
2. press <WIN>-R, type cmd <ENTER> (this way I can add parameters, like /k aliases)
Launch Firefox: tap Windows key, type fire
Launch Thunderbird: tap Windows key, type thun
Launch Leo without console: tap Windows key, type leo
Launch my py-leo-git.cmd batch file to run Leo with a console from my git clone:
tap Windows key, type py-leo-git
In none of these cases did I have to do any configuration or set anything up. Well, my batch file has to be on the system path, of course. I'll bet it works the same in Windows 11.