For me, one of the main reasons was the difficulty of setting a debugger inside vim, stepping lines and inspecting data. In vscode debugging just works once you've set it up.

Also intellisense is just so much better than any of the things I've used with Vim, like YouCompleteMe or whatever other autocompletion sets you have.

Don't get me wrong, Vim is still amazing when setup correctly, but definitely these two things I have not been able to get working with Vim ever properly.

This. Im waiting for someone to change my mind. I used vscode for a year and got fedup with the slugishness of it, went to vim and never came back.