Re: Suggestion: C-x C-u => undo-only

[Richard Stallman]

    Note that I do think it's a bit dumb that the easy-to-type binding
    (C-x C-u) is a rare command like upcase-region, and the harder-to-type
    binding (C-x u) is a very common command

The purpose of the c-x u binding is to be easy to describe.
The same command has other key bindings that are easier to type,
but how to type them depends on your keyboard.