FYI - this is not a general-purpose cheat sheet for vim. I've been using vim/vim for over 35 years.
So, this is more of list of random things in core-vim or various plugin-ins that I've recently started using or am strugging to remember when I need them.
Use exerberant ctags for best results. (It's not the default ctags
program on MacOS.)
g-] Search for the tag under the cursor and select between multiple possible matches.
gq} Format the rest of the current paragraph, wapping lines
gqG Format the rest of the file
Ctrl-P provides fuzzy matching for file, path, and buffer names. Once it starts:
ctrl-r Toggle regexp mode - useful when you want to make the matching less fuzzy to search for sequential characters.
ctrl-f ctrl-b Cycle through the modes - matching files, buffers, or MRU files
ctlr-d Toggle between file name vs. path name matching
F5 Refresh the list of files - useful if you just moved a bunch of files around.