alt Hacker NewsNight Sight appeared on the Google Pixel camera app in 2018. I think Nokia was doing it first on phones before Microsoft destroyed the remains of their phone business.
The reborn Nokia/HMD was also doing multi-sensor image stacking back in 2019 on the Nokia 9 Pureview.
The related paper (2019): https://google.github.io/night-sight/
Google has some great blogs about their camera technology https://research.google/blog/night-sight-seeing-in-the-dark-...