Mouse wheel support is available for the List Picker control, also for the Date, DateTime, Templated, Time, and TimeSpan pickers.
The mouse wheel support is available with Telerik UI for Xamarin version 2020.3.1207. You can check the following feature request: https://feedback.telerik.com/xamarin/1482327-datepicker-uwp-scrolling-does-not-work-when-using-the-mouse-wheel. Its status is completed.
Could you please elaborate more what is the exact behavior with the pickers you are observing on your side? I have tested all pickers controls and I can scroll through the items on UWP using the mouse wheel.
I look forward to your reply.
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