iPhone 14 Pro - screen glitch / flickering after Software update - phone gets hot - warranty expired 3 days ago - please help!

iPhone 14 Pro - 22 may 2023 I got my phone - I updated on 25th May 2024 - ever since yesterday it’s been glitching- Apple warranty expired just 2 days back. I don’t know what to do.

my phone is getting hot since 4 month-ish since last update.

i never dropped or even scratched my phone

never dropped liquid on it

i tried reset, force reset, factory reset too.

‘nothing works…

but!!!! When the Apple logo or setup page comes up it doesn’t glitch. As soon as home page or other apps open it glitches.

the glitch shows up here and there and sometimes all over the screen.

the letters looks like they jump

the glitches is coloful but mostly pink and green

why would I want to pay for the damage I didn’t do?

please help!