Google extends Pixel 4 XL warranty past 1 year in some counties for specific issues
https://www.androidpolice.com/2021/07/20/google-might-be-extending-your-pixel-4-xls-warranty-for-an-extra-year/

Google's support page here
https://support.google.com/pixelphone/answer/10169830

日本も1年間延長される国に入ってるみたいだ