Google has teased UWB support in the Pixel 6 and Pixel 6 Pro, its next flagship smartphones. The Pixel 6 series will feature 5G mmWave connectivity too, courtesy of a Samsung-supplied modem.
https://www.notebookcheck.net/Google-Pixel-6-and-Pixel-6-Pro-to-support-5G-mmWave-and-a-UWB-chip.557108.0.html