VSCode is free if you self-host it. There are corporate tiers with virtual desktops etc, and you can pay for services as GitHub pilot if you want.

Anyhow there a wealth of free extensions to customize it and the setup is really straightforward. I have version management git in a private GitHub project for version management. You can add extensions for rendering graphs in good quality and importing and exporting stuff is easy.

I have not been able to figure out why some people prefer to use Jupiter notebook as it is.