> Either that, or they'll end up with a largely frozen code base like Apple's copy of the FreeBSD userland, which is probably OK on a console.
I think this is what they've settled on and are quite happy with.
For PS5 they'll likely do another from-scratch adaptation of whatever the then-current FreeBSD is.
It's obvious that FreeBSD contributors picked FreeBSD over Linux because they wanted to publish their software for people to use with no obligations whatsoever.
If Sony is heavily modifying the FreeBSD code, eventually they'll start contributing back, because maintaining a substantial fork is more effort than upstreaming code. Either that, or they'll end up with a largely frozen code base like Apple's copy of the FreeBSD userland, which is probably OK on a console.