I havent tried grey scale but always have non important notification turned off, I have removed all social media except Snapchat, Facebook, Messenger and Youtube. I wont touch Snapchat and Messenger because I use these to obviously message people I dont have phone numbers for. I dont touch facebook unless to post or do a quick check on friends lives, Youtube will either be disabled or locked until night time. I have added webtoon and audible and spotify because I can only do so much on them. I have no games and wont be getting any anytime soon,