Please, tell me: Is vim worth learning? Is it more productive than VS Code?

Vim is like any other tool some love it and some don't. You may give it a try and see for yourself. I believe any text editor is as productive as you make it. Although, Vim has a rather steep learning curve compared to other editors so keep that in mind.

More productive? Maybe
More glorious? Sure as hell

Depends, for me I never was able to get my self to use Submlime for more than being a replacement for notepad on Linux

Never thought I'd be able to use a text editor with extensions as a replacement for an IDE, but then comes VS Code, replaced my usage for VS, Jetbrains Webstorm when working with: Dotnet Core & React/Vue

Thanks for your comments.

The level of productivity depends on how much you know it. If you master it, it can be productive, otherwise it could be the worst.

I hope you are ready to spend a lot of time learning it

Agreed.

Don't forget to tell everyone about how much you love Linux and Gimp and Windows has 32 viruses all the time and reboots hourly and wears out your laptop hardwares. @DLMousey