I don’t think there is a simple “fits-all” solution.
In my case there is a monetised proprietary “enterprise” edition of the projects available.
Contributions only get accepted if they fit into the commercial roadmap, which is shaped by the (paying) customer needs.
It’s not perfect but the OSS “community” edition is still usable and valuable to many
Thanks for taking the time to reply. I agree that there's no "fits-all" solution & I think that's a good sign of the open-source ecosystem's diversity.
90% of contributors won’t read it at all or only some parts of it and ignore the rest.
Most PRs you get solve some super specific individual problem and aren’t relevant for the wider community that uses your OSS.
It’s not their fault really but most contributions are so bad it doesn’t serve to spend any time on reviewing them earnestly.
(Been maintaining several popular projects for the last 7 years)