Google is rumored to be developing better face unlocking tech for both the Pixel 11 family and upcoming Chromebooks. This endeavor is internally codenamed Project Toscana. According to someone who allegedly tested it, it will work without any additional visible sensors on the Pixel phones. It's unclear if it's using infrared like iPhones do, but if it is, then the IR bits are hidden under the display (and Apple is rumored to be going the same route for the iPhone 18 Pro and Pro Max). So basically everything looks the same as on a Pixel 10, but, importantly, the face unlocking works as well...
Source: https://www.gsmarena.com/google_is_developing_face_unlocking_tech_on_par_with_iphones_for_the_pixel_11_family-news-71602.php