You don't need to update your Mac OS.
In your Minecraft launcher, go to your world settings and turn off resolution, it will fix this bug temporarily - I also don't understand why Mojang are saying the Mac OS crash on launch bugs are "resolved" when this has been a bug since last year and they haven't even told us why or what is causing it.
This bug is a hopper bug and it's not a resource pack issue.
Yes there are quite a few, I have no idea what they are...
This is still an issue, Minecraft 1.14 snapshots are basically unplayable. Lag spikes, mobs stuttering when they move, I have chunk errors all over the place, when I fly through a world one chunk loads while others disappear and the village raids are so laggy that I can't kill mobs properly.