If your device is stock, not flashed, rooted, or messed about with in other ways, then go for it.
Notification catagories will need to be enabled after the update. Settings>notifications > advanced settings > manage notification catagories for each app. Toggle that ON.
If you currently use swipe gestures, then expect that to change. You'll need to install Good Lock app from Galaxy store and install the NavStar module.
Your AOD screen might be too dim in bright sunlight. If so, you'll need to install the Lock Star module to enable the brightness slider.
If you've had a non authorised screen replacement, your device screen may (and I stress may) become unresponsive.
Some 3rd party apps may not work anymore, but that's usually down to the app developer. Check for app updates or reach out to developer.
Finally, ensure you wipe the phones cache partition after the update, to help keep the device running smoothly. Instructions can be given later if and when you've updated the phone.
Im sure you've seen many other horror stories so it's really up to you how you proceed. We're here if you need any help.
