Since the site owner's English is limited, I won't attempt a translation. Please refer to the screenshots below. These are introductions to open-source mobile apps developed using Xamarin.Forms. If interested, you can visit the GitHub and Gitee repositories to explore and download the corresponding app projects for study.
GitHub：https://github.com/jsuarezruiz/xamarin-forms-goodlooking-UI
Gitee：https://gitee.com/dotnet9/xamarin-forms-goodlooking-UI
Below is the original repository description:
Xamarin.Forms goodlooking UI Samples 
A curated list of awesome Xamarin.Forms samples to show how to create goodlooking UI with Xamarin.Forms.
Work in progress. Contributions are always welcome!
Would you like to see a list of published applications made with Xamarin.Forms? Thank you David Ortinau for the list!
Would you like to see more goodlooking UI samples?. Do you know Snppts?