An alternative to devcontainer.json is that the .vscode/ "Workspace settings" directory also supports an extensions.json where the "Workspace" can suggest exten

An alternative to devcontainer.json is that the .vscode/ "Workspace settings" directory also supports an extensions.json where the "Workspace" can suggest extensions to install. The easiest way is to go to the extension in your Extensions list (such as in the above example the Volar [Vue Language Features] extension) or in the "marketplace" and under the Settings cog menu is an "Add to Workspace Recommendations". Developers opening the workspace after that will get a friendly notification popup to install recommended extensions if they don't have them installed. (It doesn't force the install, it simply recommends it and makes it easy to install. Which is nice, too, when Developers prefer in their own workflows to use alternatives or Preview Versions or no extensions.)