Also, the website for visual studio code seems to suggest that the copilot/LLM based suggestions are only present if you have the extension for it installed. (https://code.visualstudio.com/docs/editing/intellisense#_enh... ). If this is true, then (according to https://bobbyhadz.com/blog/uninstall-extensions-vscode ) you can either click "extensions" on the right side-bar or press Ctrl+Shift+X to open the extensions menu, type the name of the extension or select it from the installed extensions list, and then either click uninstall or disable depending on whether you want to to uninstall it or just disable it.
I don't have visual studio code installed, so I haven't tried these solutions, but I imagine that they will probably solve your problem. Hope this helps.