The end goal of this proposal is to build interoperability features into GitLab so that it’s possible on one instance of GitLab to open a merge request to a project hosted on an other instance, merging all willing instances in a global network.
To achieve that, we propose to use ActivityPub, the w3c standard used by the Fediverse. This will allow us to build upon a robust and battle-tested protocol, and it will open GitLab to a wider community.
afaik, PRs arent decentralized as they arent git features, as such so far you need an account on the same git-platform e.g. github to be able to use such features.
Having such features decentralized would be huge.