That's very strange. Galaxy watches should work with GOS under the following conditions:
- Galaxy Wearable and the required Watch Manager are installed in the owner profile
- Sandboxed Google Play Services is installed in the same owner profile
Nearby devices
permission for Google Play services is granted (Apps > Google Play Services > Settings > Nearby devices > Allow)- Allow any required permissions within the Galaxy Wearable and required Watch Manager apps
With the above, my Galaxy Watch 6 classic BT works great with my Pixel 8 running GOS build 2024042200
. It could be due to the fact that you have an LTE model, and perhaps some additional setting tweaks are required for establishing LTE connectivity.