Don't Install If You Haven't Prepared
Don't install the beta on your Galaxy Note 8 until you've had time to prepare.
While you might be tempted to jump right in with the beta, we don't recommend it. Again, this is pre-release software and it could give you a major headache if you aren't careful.
If you spend a few minutes preparing yourself and your device for the move to the beta, you should be able to prevent a headache from happening.
We recommend checking in with IT (if you have an IT department) before you install the beta because it could have a negative impact on the software you use for your job.
We also recommend making a backup of your important files, just in case something goes wrong with the installation.
You'll also want to update your apps, including first-party (Samsung) and third-party apps, with the latest updates. If you don't, they might not work.
If something goes wrong during your time on the Android Pie beta, you can downgrade back to Android Oreo. Thing is, downgrading is a real pain.
If you decide you need to get off the beta, you'll be forced to data wipe your phone. This is why you need to backup all of your data before you install.
If you don't have time to deal with any of this, you'll want to avoid the Android Pie beta and stay put on Android Oreo.