If you work on several projects in different environments and languages, and need to check out new ones quickly, it saves a lot of time if you don't have to set up an environment locally (especially if you don't even have the necessary platform or hardware).
I work in embedded, but we just pushed out VSCode Dev Containers (docker images that natively run a vscode server that your client attaches to) and it has been the greatest thing ever.
Clone the repo, open in container, complete toolchain with all the extensions and settings you’ll need. I absolutely love it.
