In VexCode (app or web) you can download via Bluetooth, but the Visual Studio Code addon does not have any support for that.
Unless I am mistaken, I don’t think VSCode extensions have bluetooth support. I think they have serial support, but they don’t have bluetooth support.
Typically, if you want bluetooth in a VSCode extension I believe it has to be done indirectly, and is quite a headache.
But (I guess) on the bright side, you shouldnt find yourself switching to bluetooth mode in competitions.
If you didn’t know, you can upload through the controller, but It could just be that that just wasn’t the top priority and this was never developed.