So they will lock down software that makes their hardware even more attractive?
I doubt it, but we'll see I guess.
The Apple isn't perfect but it sure ain't as bad as some seem to think.
If people start to buy their hardware just to immediately wipe Mac OS off the SSD, and instead install Linux, have a great experience it, and also enjoy e.g. playing AAA games that cannot be played in Mac OS, yes, they for sure will consider locking it down. That's just how these soulless mega corporations think. Too many open source projects have ended up that way. Sued, bought up and shut down and developers hired by the company instead, etc.