Hi Chuy,
Note that HarfBuzzSharp and SkiaSharp have native assets packages that need to be included:
https://www.nuget.org/packages?q=HarfBuzzSharp.NativeAssets
https://www.nuget.org/packages?q=SkiaSharp.NativeAssets
So, please try installing HarfBuzzSharp.NativeAssets.iOS and SkiaSharp.NativeAssets.iOS.
Does this solve your issue?
Regards,
Mario