Ybenel

if you have configured lsp for js html and css it should handle running 3 language servers simultaneously for auto completion. like if you open an html file that includes css and J's it would run js and css LS

I'm using highlight-indent-guides

(use-package! highlight-indent-guides
  :init
  (add-hook 'prog-mode-hook 'highlight-indent-guides-mode)
  (setq highlight-indent-guides-method 'character
        highlight-indent-guides-delay 0
        highlight-indent-guides-responsive 'stack
        highlight-indent-guides-auto-enabled nil))

What's your font config? Using any anti aliasing or hinting?

i think i am, like you said its probably a font hinting/autoaliasing issue.
Do you know of any solutions i could try?

While you might not notice the difference between the screenshots. If you download the full resolution images (X and Wayland or Xwayland) You'll see the difference.
its like its cut and not drawn properly. This issue is only on Emacs.

I'm using arch, couldn't find anything like my case. But openSUSE build seems like a good way.

Yeah that's a Gentoo specific, compatibility issues. Also It only works for different versions of emacs im installing 29 version twice different features.

Corfu and it's extensive packages.