It has been for a maybe 10 years. I take the recent announcements as "proof" the Linux Foundation does not care about hiding that fact. It is too bad, some distros are trying to avoid following corporate mandates, but I think their days are numbered. The Debian/AI vote proves that.
Another indication is the on-going rewrite of GNU UN*X utilities to a different License. Corporations hate the GPL. With clang, rust/uutil and now pgp rewritten in another license, distros are well on their way to being non-GPL. I have popcorn out waiting to see how Companies will move the kernel from the GPL2 to something else.
It was nice while it lasted.