iPhone 14 Pro Max email notifications changed from group to individual for each email

I have a iPhone 14 Pro Max. It’s updated to the latest iOS. My question is my emails used to notify me just one time and a group of the latest emails would appear. Now when I get a group of emails I’m notified of each one individually so it’s annoying because my phone will go ding ding ding however many emails I have and before a whole group would show up with only one ding sound. How do I fix this? Thanks

[Re-Titled by Moderator]

Original Title: email notifications