Hello ! I come back from some holidays and now I'm wondering if it would be worth it to learn vi/vim keybindings (maybe change my IDE when possible with some vim/neovim, install keybinding in other editors) ? If yes, what method would you recommend to me to learn them ?
I used vim for over a decade and also neovim for a bit when it cam out but ended up with Kakoune. I absolutely recommend you vim if you feel like you will need the support of a strong community and lots of ready made extensions. Otherwise I'd suggest you to check out Kakoune.
I used to watch destroyallsoftware... - he uses vim in a very nice way, and it gives an overview of how an advanced vim user writes code.
Go through vimtutor, read this: yannesposito.com/S... then start using it as your main editor, try to avoid switching to another editor. Start building your vimrc one step at a time and try to make it meet your workflow. If you're lazy, start using something like spacevim, i wouldn't recommend that but it might help if you want to get productive right away.
I've heard vimtutor is great for this.