I am still having the UI bug of the pet journal not showing. I tried installing the add-on “rematch” but even that doesn’t work. I love pet battles so I am frustrated.
I’ve concluded that Blizzard simply doesn’t test anything related to Mac. It was pretty exciting to hear that they were able to get WoW running on M1, but it didn’t take long to realize that seems to have meant someone just made sure the game launches.
Really disappointed 
My Pet Journal is 100 % Broken on my Mac mini M1
Hope blizzard is working on it
Turn on Rosetta. Temp fix. I posted a thread a while ago under an old character and got a blue post
Edit: oh hi, it’s alivery. This is my main. Found rosetta fixed pets when I turned it on to boost a character.