dotvim VS vim-plug

I have a whole file full of mappings like this that let Vim recognize various special key combinations from any terminal emulator I've used in the last 20 years. It's a mess: https://github.com/mgedmin/dotvim/blob/master/plugin/keyboard-workarounds.vim

https://github.com/mgedmin/dotvim, accumulated over many years.

So, three out of four? https://github.com/mgedmin/dotvim

Assuming I understood your desire correctly? I have a function to jump to the original (or patched) file when I press Enter on a line of diff: https://github.com/mgedmin/dotvim/blob/master/ftplugin/diff.vim

I use a custom foldexpr. I've been using it for many years, and polished it to do the right thing on all the codebases I've used it on.

My ~/.vim/ is a Git repository and I make it support older versions of Vim by checking for the existence of features before using them, because I couldn't stand my .vimrc emitting any errors on Vim startup. If you're interested, it's here: https://github.com/mgedmin/dotvim/

The primary reason why I need timeout/ttimeout is to have a working Escape key, when you also want to have custom bindings for various key combinations (e.g. ctrl+shift+arrows) that aren't natively recognized for your terminal for some reason, and thus you end up creating compatibility mappings for them.

My ~/.vim is here, if you're curious about the details: https://github.com/mgedmin/dotvim/

I'm perfectly happy with ~/.vim in a separate git repository (mine), with all the plugins installed via vim-plug.

My vimrc is, uhh, big, but I've tried to keep it commented.

vim-plug

Did you really install VimTeX? Did you run :PlugInstall? Ensure you installed and set up vim-plug correctly (https://github.com/junegunn/vim-plug). If VimTeX is installed, it should be installed to '~/.vim/plugged', thus you can open a terminal, then cd ~/.vim/plugged/vimtex and you should find the files there.

If you're determined to use vim for some reason, I'd suggest checking out vim-plug: https://github.com/junegunn/vim-plug. Quite useful for installing and maintaining all of the plugins that you're going to need to get vim to provide even a subset of the features offered by modern editors.

I encourage you to add plugins to your vim (tip: use vim-plug). Use vimawesome.com for inspiration.

Personally, I like https://github.com/junegunn/vim-plug

But the plugin manager https://github.com/junegunn/vim-plug can also install from offline sources, without accessing Github:

To get started, simply install the plugin using your favorite plugin manager, such as vim-plug or packer.nvim. You can find detailed installation instructions in the README.

Not sure if Vundle did anything particularly fancy, but I'm using vim-plug [0] and have no complaints. It stays out of my way to the point that I had to look at my .vimrc just now to make sure that's what I was using.

[0] https://github.com/junegunn/vim-plug

I chose to move on to vim-plug and can report it was a simple switch from Vundle.