[CoolCold]

I have not found an answer on does it support dealing with containers on remote side, let's assume it does and pass this part.

One day I was not familiar with VSCode and I became familiar and many others as well. Just not Emacs. Assuming you are right and technically Emacs has all bells and whistles, it must be something else that not promoting it for being wide used.

And you skipped the part about VScode tunnels all along.