Google I/O 2021 has kicked off with what the OEM calls "the biggest update to Wear OS" in this software's history. It has collaborated with Samsung and Fitbit to bake the better features of their wearable platforms into this upcoming version. It will be available to the next generations of both OEMs' watches, as well as those of other Android manufacturers.
https://www.notebookcheck.net/Google-debuts-Wear-OS-3-0-confirms-new-Samsung-partnership-and-Fitbits-that-will-run-on-the-new-software.540005.0.html