Essentially, we run nightly builds at OpenVSCode Server making it as upstream to VS Code as possible. In contrast to other forks the whole scope of the project is to add a minimal set of changes (specifics about what we added https://github.com/gitpod-io/openvscode-server/blob/main/doc...)
The architecture we use powers both Gitpod and GitHub Codespaces. Several of the devs and organisations that have asked for our implementation & now have adopted OpenVSCode Server referenced the following issue at Code-Server (https://github.com/cdr/code-server/issues/3835).