I switched my three year old from one preschool to another. This was pre-covid, so it was a little different - but I was very unimpressed with how they were filing the kids' days and when I asked the director about it, she got upset with me. I certainly didn't lose friendships and don't think you can stress about that. People move around at the preschool age for all kinds of reasons - new siblings, a parent decides to stay home, people move. You should follow your gut and if you're really unhappy, know that kids are resilient and your kid will be fine at a new place that seems better. I am much happier at the new school, although it is also NOT perfect. No preschool is perfect.
HOWEVER, some of your complaints are pretty silly, IMO. You want notice of new kids joining the class (how does that even impact you)? Notice of all snacks? A daily log Think critically about how difficult it is to watch a bunch of toddlers all day...wouldn't you rather the teachers be focused on your kid rather than writing up their potty/food/nap schedule for you? If your kid doesn't eat anything or never naps, then they should raise the issue with your (or you with them). But I think you just can't send your kid to all day child care and then micromanage the caregivers. Preschool teachers are, frankly, overworked and underpaid and if your kid is happy and thriving then you really should let this stuff go.