This is one of the many Google projects to which I’ve been lucky enough to contribute just a bit (focusing on object tracking & graphical adornments). It’s built into Google Photos, among other surfaces, and I’m really pleased that people are seeking it out:
We at AP don’t think that Lens gets enough praise; we even named it one of our 10 favorite Android features from 2020. Lens is an AR-powered service that can help you translate, identify, and scan things around you. Last year, it added support for solving homework questions, text-to-speech and “copy to computer” functions, and helping choose the best dishes at restaurants. There’s lots of nifty stuff that Lens can do.