Earlier quoted context omitted.
And? How's this relevant?
I mean, there's unlikely to be any official support of zfs on Mac and the fact Apple developed apfs recently could mean there's less appetite for community to port and support zfs on Mac.
Eh? The community port and support already happened, years ago. I made the move myself from ZEVO once Spotlight support got mainlined but even that was a while ago and it already had a ton of great features before that. It is a small scale effort compared to Linux or FreeBSD of course, but it has kept up pretty darn well and is pretty solidly developed at this point. I push it pretty hard on my Macs and it's been pretty reliable, though there are definitely edge case oddities that can be found. You can also see the smaller scale of the effort in areas like the wiki not being fully up to date, or that booting off of it still is rough. Even so it's pretty solid at this point and hits all the core features including encryption.
Long term the big risk of course is that Apple will shut off all user low level access to their drives via T-series chips in Macs, since they don't actually give hardware owners the ability to use their own keys there. Ideally this would be illegal but I doubt any movement will be made on that in the US at least in the near future. Even so given that Apple up until recent has still been selling brand new Macs without it macOS itself will likely support running on those systems for a long time to come (Apple still officially supports running the existing version even on 8 year old MPs, granted with compromises but those had pretty fundamental divergences from modern firmware too). O3X is still pretty nice in the mean time.