Apple added handy notification banners instead of the old big notifications in iOS, but after that, banners
A new jailbreak tweak can solve this problemTinnybannerswhich will make notifications much less.
Tiny TinyBanners can be customized, which means you can decide for yourself what your notifications will look like. The size of banners can be changed and made as small as possible.
After installing TinyBanners in Settings,panel with tweak options. There is a “Test Banner” button with which you can understand in advance how notifications will look. There is also a respring button for quickly applying changes.
If you would like to change the appearance of your notifications, you can download TinyBanners tweak from the Packix repository. TinyBanners is only supported on iOS 12 devices.