iOS 15 beta 2, iPhone 8 Plus] If you reset the homescreen layout while in landscape on Plus models, you'll get widgets on the landscape homescreen, which isn't supposed to happen. :
iOS 15 on iPhone 8 Plus - How does it run? - YouTube
Apple Hub - According to iPhoneSoft, iOS 15 will be compatible with all iOS 14 compatible devices except for the iPhone 6s, iPhone 6s Plus and the 1st gen iPhone SE. #Apple #
Will iPhone 8 Get iOS 15? When Does Apple Support End?