Right now you probably can't experiment coding with .net 6 on Linux (I'm not sure with VSCode but it didn't work for me last week with Rider so I'm still on .net 5).

So if you wait a few weeks to get full support assuming you want an IDE experience and not running everything from the console:

- if you want free (as in beer): Visual Studio Code - if you have a Jetbrains license or don't mind paying for one: Rider