Workaround:
Disable the gestures of the flyout page
<FlyoutPage x:Class="TelerikTestApp.Views.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:telerik="http://schemas.telerik.com/2022/xaml/maui" IsGestureEnabled="{OnPlatform Default=true, iOS=false}" xmlns:views="clr-namespace:TelerikTestApp.Views">
Regards, Didi Progress Telerik