Not necessarily; certainly traditionally Linux tended to merge things when it's "good enough" whereas BSD tended to merge things when it was "rock solid". There's something to be said for both approaches and both have their own advantages and disadvantages.
These days Linux tends to be a bit conservative though, and it's not the same project it was 20 years ago.
Theodore Ts'o posted something interesting on this a few years ago:
P.S. There is yet another example of "Worse is Better" in how Linux
had PCMCIA support several years before FreeBSD/NetBSD. However, if
you ejected a PCMCiA card in a Linux system, there was a chance (in
practice it worked out to be about in 1 in 5 times for a WiFI card, in
my experience) that the system would crash. The BSD's took a good
2-3 years longer to get PCMCIA support, but when they did, it was rock
solid. Of course, if you are a laptop user, and are happy to keep
your 802.11 PCMCIA card permanently installed, guess which OS you were
likely to prefer --- "sloppy but works, mostly", or "it'll get there
eventually, and will be rock solid when it does, but zip, nada, right now"?*
https://www.tuhs.org/pipermail/tuhs/2017-May/011552.html