How to configure intellisense on vscode with unity and linux?

Question

I recently switched to Linux and I have problems with Unity and VSCode. When I open any of my scripts, classes like MonoBehaviour don't exist... I found that you should change Omnisharp: Use Global Mono to always, but that option doesn't exist. (I have C# extension and mono installed)

Answer 1

For anyone who has this issue:

Assuming everything else is up to date, changing Use Global Mono to always does work. You have to revert to an older version of the C# extension to see the option in settings. 1.24.4 works for me. You can do this by going to the extensions tab, and clicking the gear icon next to the C# extension, and choosing Install Another Version...

Found the solution here: https://forum.unity.com/threads/solved-unity-with-vs-code-and-intellisense-on-linux-mint.986088/