According to the "Evilified modes" documentation [1], C-u gets moved to C-U, but when I try to hit that (Ctrl+Shift+u), my cursor still gets moved one page up, instead of starting a new long command.
[1] - http://spacemacs.org/doc/DOCUMENTATION.html#evilified-modes
dotspacemacs-editing-style 'hybrid, you canC-u M-x your-commandas you normally would.hybridgenerally makes insert mode work like normal Emacs. – Teodor Feb 04 '20 at 09:51