I literally smashed my Pixel XL with a beer bottle (it tipped into the phone, there's no way a phone can survive that), swapped my sim to my old phone and called their 1-800. Was on the phone with support within 15m, they overnighted me a new one (under the protection plan) without me having to send in the old one, and then the new one had an issue with the proximity sensor, so I used the on-phone support to have them call me instead of waiting on hold. Explained the situation and they overnighted a third one which worked great without needing to return anything. I then sent the other two back. It was very good support actually given the circumstances, and I used that phone for two or three years before getting the Pixel 3XL. After having the 3XL for a little less than two years, I randomly took off the case to show off how nice the phone was without one (it was the white model), and realized the battery was swelling a slight but noticeable amount. It was a day or two before the protection plan expired, I called them via the builtin support functionality, again in a few minutes to check if the claim would be honored, hopped off that call after investing about 15-30m of my time, did a pretty easy claim process (another 5-10m) and had a new phone delivered in about 3 days. Swapped my SIM in, transferred all of my stuff, and shipped the old one. It was seamless and easy.
In general, Google's support is mostly nonexistent. There are harrowing stories of Pixel support, but I have not had them, so ehh.
On the other hand, I have had humorous kerfuffles with Dell in trying to stop them from sending me a replacement unit that turned out to be unnecessary (even though the support rep had issued a replacement ahead of arrival due to a report of damage by UPS). They said we'll ship you one, just let us know if the one that arrives is not damaged and we'll cancel it. Despite me doing that in triplicate they still sent it to me. And then after I spent a bunch more time getting support to understand this, I was able to ship it back via FedEx, and about a month later I got a notice that I never did... Again, was able to remedy this with a chat with support and sending over some proof, but it left much to be desired.