Watch face shell controlled by the 1Smart app "1Smart – One For All"
https://play.google.com/store/apps/details?id=com.rx7ru.aewatchface

The core app will be able to manage all the contents of this watch face, returning the functionality that Wear OS 5 deprived you of with its brainless watch faces — including extended night mode, graphs, 3 weather providers with unique weather charts, phone interaction, and more.

This watch face for Wear OS is a simple shell for the 1Smart app core for Wear OS 5. It works properly only if the core app is installed.

https://play.google.com/store/apps/details?id=com.rx7ru.aewatchface

It includes several important complications (widgets) that can only be accessed from the app core.
You will need to reinstall this watch face or temporarily remove it from your favorites if you installed it before the core.

* Without these conditions, you will only see the warning text.
Tap to install the 1smart core service, then reinstall this watch face again to get the classic look of good old 1Smart.