Hi! It happened to me twice. I lost 266 contacts. It is so annoying. I tried to recover my contacts from back up and it didn't work. I tried to view my contacts from backups and it didn't work. I have a Galaxy S22 ultra. I was able to recover my contacts from Google's Website.
Samsung, what are you doing? besides removing the SD slot and reducing the battery life??
I never had any issues with my old phones.