most pager is nice, but its default keybindings are unlike any other.
As I don't want to learn a whole new set of keybindings for my pager (no matter how fancy and wonderful it is), is there any way of making most hotkeys feel more like vi, less and others?
most hotkeys are highly configurable. The settings are customized with ~/.mostrc file.
Actually, your most package most likely comes with lesskeys.rc example configuration, somewhere in the documentation folder (it's /usr/share/doc/packages/most/lesskeys.rc for me on openSUSE Leap 42.1).
You just need to copy that file's contents into your ~/.mostrc and you're done: you now have less-like keybindings in your most!