I thought the same about SLT. Just couple days ago, saw a guy using VS Code on youtube and now I am tinkering with it since then. Love it! All day today spent on trying to make Remote-SSH work with key based authentication when using putty agent on Windows for loading the keys. I already had setup weasel-pageant to forward socket to WSL but turned out by default VS Code does not use putty agent. So had to use wsl-ssh-pageant instead and loving the result. No more X11 forwarding for SLT for editing files/projects on remote ssh hosts. :)