Once connecting VScode studios to a local VSCode IDE is possible via SSH tunneling, there are different potential user flows how to most easily connect to the running studio session.
One very user-friendly and easy way could be to add a studio session view into the Nextflow extension for VSCode that shows running VScode studio sessions and lets a user connect to it via clicking, similar to Gitpod (https://www.gitpod.io/docs/gitpod/editors/vscode).
This request relates to SSH connection to a running studio.