As a fellow Mac user I've been scouring for news and at present...kinda? I don't remember where it is now but I had found a thread from Larian that said they were targeting September 6th for Mac release as well as PS5. I've been anxiously scouring the Larian-sent threads as best I can, without finding spoilers, as well as both the Larian and BG3 Twitters. So far there is no indication there is any delay, but there's no confirmation it's coming out then either, at least to the best of my knowledge haha. I hope this helps!
Edit: I went and found the thread! Here it is, it's very early on in the section about platforms!
https://forums.larian.com/ubbthreads.php?ubb=showflat&Number=874803#Post874803