Your experience isn't always representative - and mine isn't either, of course. I've been buying Nexus devices since the Galaxy Nexus and I owned every Pixel device so far and the only genuinely bad experiences where the following:
- Nexus 7 from 2012 became slow as hell due to storage issues after a year. It worked fine after I RMAd it.
- Pixel 2 XL had a terrible display on the first charge. I got it replaced and the new one was way better.
- Pixel 4 XL got replaced once because the phone got quite hot while charging. The replacement has been working well.
I know a lot of people who definitely had more issues with their Samsung and Apple devices.
- Nexus 7 from 2012 became slow as hell due to storage issues after a year. It worked fine after I RMAd it.
- Pixel 2 XL had a terrible display on the first charge. I got it replaced and the new one was way better.
- Pixel 4 XL got replaced once because the phone got quite hot while charging. The replacement has been working well.
I know a lot of people who definitely had more issues with their Samsung and Apple devices.