> All I need is a Github Copilot clone

I'm using https://github.com/copilot-emacs/copilot.el

> good code search feature.

project-find-regexp is a nice start.

> Oh and automatic reloads of open but unchanged buffers when switching between git branches.

(global-auto-revert-mode t)

> Oh and the ssh remote extension.

I haven't compared it to Tramp.