How do I trigger suggestion(s) in VSCode in Catalina?

Question

This tells me that I could use ⌃ + Space combination in order to display suggestions for my code. However, ctrl + Space ( ^ key is ctrl as far as I know) only seems to change the input language keyboard in my system. Nothing else seems to work.

Answer 1

Try Option + Escape, on mac.

The mac keyboard shortcut ctrl + space for switching input sources overrides the VSCode one. Because of this, VSCode added a new keybinding just for mac, Option + Escape

This is actually called intellisense, and the new keyboard shortcut was added in the November 2019 update.