Assuming your 8 year old wants to write a game (who doesn't?!), I recommend grabbing a free copy of Pyxel.

Pyxel games are coded in Python, and has opinionated libraries for building games. It comes with a built-in sprite editor, map editor, and music editor.

The Pyxel tutorial ecosystem isn't as mature as Scratch, or Microsoft's Code.org, but it's a strong next step for a kid who wants a bit more power from their code.

You can also host the games your 8 year old ceates on a static website, or in other easy sharing forms, if you're so inclined.

The only thing Pyxel doesn't include is a code editor. I heartily endorse the previous recommendations for VSCode or VSCodium.

While I'm a die-hard fan of Codium, doing the extra work to find plugins outside the Microsoft ecosystem, or point Codium into the Microsoft plugin ecosystem, probably isn't the best use of your or your 8 year old's time. But if you're particularly privacy minded, you can easily use the Microsoft plugin ecosystem within Codium, by searching the Codium wiki pages for the two files that need modified.

I would definitely encourage finding and using the Microsoft published VSCode/VSCodium Python plugin pack, to support your 8 year old's learning journey, if you go this route.