@JordiGH when brand new, a recent vintage smartphone might last a day and a half to two days of normal usage on a full charge. My first generation Pixel XL now lasts about 75% of one day on a full charge. (This problem is mitigated by how quickly USB-PD can return it to 100%.)
I'm torn between paying ~$80 for a battery replacement or just putting that budget towards a newer phone, thus extending the software support horizon too.
Smartphones are a crappy market segment. 👎