The Marvellous Suspender has been a fork since day one, born in 2021 out of The Great Suspender, at a time when that project had been pulled from the Chrome Web Store and flagged as malware. TMS cleaned up what needed cleaning and gave orphaned users somewhere to go. Fair enough, that's exactly what a fork is for.
But five years later, TMS isn't a patched-up copy of someone else's abandoned code anymore. It's had a full Manifest V3 rewrite, a proper visual redesign, its own contributors, and, as of a few months ago, a home under the Marvellous Codeworks name. The GitHub fork relationship, though, hadn't changed: technically, gioxx/MarvellousSuspender was still listed as a fork of the original repository, tied to its network, its issues, its history.