I use neovim daily but am 100% sure I'm not even scratching the surface of its power. In fact I'm not even sure I'm using anything specific to the "neo" variant vs plain vim.
I can do simple search/replace, page up/down, jump to character or delete x words, but I feel like I'm missing a lot to really take advantage of it.
Is there a tutorial or guide people recommend to become more of a power user? The only plugin I have is the Markdown editor for instance.
Maybe try https://vim-adventures.com/
If you search up vim games you'll find some fun tutorials.
Honestly, same. I did naturally start to pick up things such as c(code actions) and some git related helpers. But <cnt><c/d/n/o/y/p> gets you 90% of the way there with / navigation.
Also just use the mouse! Lazyvim has great support for it.
<leader>SK is your friend as well.
I'd recommend checking out lazyvim, it comes with a bunch of very sensible plugins and you can read through the lazyvim docs (and then click through to individual plugin docs) to discover them and see which ones you want to use.