This blog post gives a little more high level overview of the current functionality and where we're headed: https://about.gitlab.com/blog/2022/12/15/get-ready-for-new-g...
For a deeper dive you can check out our Remote Development [direction page](https://about.gitlab.com/direction/create/editor/remote_deve...) and [documentation](https://docs.gitlab.com/ee/user/project/remote_development/)