Linux itself is at least not a proprietary and commercial entity, though quite arguably its development has largely been captured by a set of proprietary and commercial entities. There's enough multilaterality in that group that fixed loci of control don't seem overwhelmingly apparent, but I'd definitely watch for those.

I've been concerned over numerous elements of Linux development (including viewpoints expressed by senior developers) for a decade or so. I think you'll find some level of concern expressed by others, including some very senior former Linux devs. (I'm not positive A.C. has said as much, though that's a vibe I get.)