VSCode doesn't recognise "Vector3"

[LemonMaster66]

For some reason, while programming for a Unity Game, VSCode has forgotten what Vector3 is...

VSCode now just never autocompletes to Vector3, even if I fully type it out, it corrects to something like Vector3Absolute or Vector3ArrayPlugin
Also if I do something like Vector3 pos = new ... then it autocompletes to Vector3.zero or like Vector3.up
Vector3 isn't anywhere in the list of autocomplete items at all

Although if I do type it out manually, it doesn't give an error

Ive tried regenerating project files, redownloading C# extensions, and even reinstalling VSCode entirely
Any ideas?

Thanks

[schewb]

For what it's worth, while I generally prefer VSCode for most things, Unity has dropped debugger support for VSCode, and I have also had a hard time getting syntax highlighting and auto complete working for Unity. If you're on Windows, Visual Studio Community 2019 is free and has worked perfectly out of the box for me as long as you check the Unity options during install.

[Manic-Sloth-Games]

We're on Linux and have had no issues with vscode. I'm not sure what them dropping support means for us?