My iPhone 8 just stopped working 2 months back (phone works but the microphone used in phone calls no longer works) so by chance my good friend gave me his pixel 8 that was only a couple few months old. It got a pink line down the screen that comes and goes which if you press in one spot can usually make it go away but he is a business owner and he can't risk the screen going from line to not working for a day as a missed communication could cost him thousands. So he said here take it and he got a new one. Seems like this pink line is common and a defect in some screens.

Anyways I wanted to say I also have a pixel 8 but with stock OS and my battery typically lasts a full day with average usage. My iPhone 8 previously even with a replacement battery was lucky if it lasted more then 5 hours. I had to charge that thing multiple times a day.