Her @Reaganfan78, thank you for reaching out with these questions.
You can absolutely adjust your notifications! At the top righthand side of your screen you should see your avatar and username, just click on your username to go to your profile. Once there, click the Preferences tab to see your account information, including your notification preferences. You can make adjustments to your notifications here, including turning off alerts entirely.
If you need any help, please feel free to let us know!
As for the pop-up, I don’t believe that there’s a way to prevent that. I could certainly be wrong and would be happy to double-check just to ensure that any information given is as accurate as possible. Thank you for your patience in the meantime!