What do I need to install on my VScode for html

Answer 1

It's an editor where you will be able to code, link and import various things. (Not precise, read this article)
https://en.m.wikipedia.org/wiki/Visual_Studio_Code#:~:text=Visual%20Studio%20Code%20is%20a,code%20refactoring%2C%20and%20embedded%20Git.

Answer 2

https://code.visualstudio.com/docs/languages/html

Answer 3

Recommended extension: Live Server. Whenever you make a change in the editor and save, this plugin will automatically refresh the page in the browser window, so you can see the result instantly. It will save you a lot of clicking and button pressing on the long term.
https://www.freecodecamp.org/news/vscode-live-server-auto-refresh-browser/