Since Oreo update, notification badges are not appearing on some apps, appearing intermittently, and for Gmail are double (i.e., badge says 6 if 3 new emails). Also, wifi drops intermittently and does not reconnect. This problem is bad, because I have a limited data plan.
I have tried every suggestion offered on every Android forum and website, up to and including the dreaded full reset. I'm convinced these are Oreo update problems. The latest software update G950USQU3CRD4 did not fix anything.
I'm not expecting solutions here. I just hope that these problem reports are getting to the people who can fix the problems they caused.
Android Nougat was completely stable. Wish I could revert.