My best understanding from reading this is a) where possible and b) where necessary. This is the Linux Foundation, so it must put OSS and community first, surely.

People talk about contributing financially, but how and to what end? Most projects aren't set up to accept or utilise donations. That said, I would say we should be providing all OSS projects with significant access to AI in order to review their codebases and PRs and hopefully relieve some of the maintenance burden. I know there are some initiatives in this area already.