File access isn't the same as tool access. You need to run tools on your ssh host as well. And a devcontainer does indeed equal a (docker) container. The name is very specific and describes shipping a full developer environments so that 'you' do not have to install gcc-toolset-15, or boost 1.83, or mold, or python 3.11, and so on.

https://containers.dev/

> File access isn't the same as tool access.

Running tools remotely isn't the same as remote editing, so you'll have to forgive the misunderstanding.

> You need to run tools on your ssh host as well.

`ssh user@remote tool`. Indeed, the tool you run on the remote host could be a text editor in itself.