AspectFit Fails to Preserve Image Stretching on iOS and macOS After Downsizing

### Description

- While loading an embedded image resource from the application assembly, downsizing it to a maximum dimension of 100 pixels, saving it to the device’s cache directory, and displaying it using ImageSource.FromFile() in an Image control with AspectFit, the image stretched on Android and Windows but did not stretch on iOS and macOS.

| Platforms | Behaviours |
|----------|----------|
| Windows | |
| Android | |
| iOS | |
| MacOS | |

### Steps to Reproduce

1. Run the below attached sample.
2. Observe that the image stretches on Android and Windows, but not on iOS and macOS.

[SampleRepo.zip](https://github.com/user-attachments/files/21100121/SampleRepo.zip)

### Link to public reproduction project repository

_No response_

### Version with bug

9.0.70 SR7

### Is this a regression from previous behavior?

No, this is something new

### Last version that worked well

_No response_

### Affected platforms

iOS, Android, Windows, macOS

### Affected platform versions

_No response_

### Did you find any workaround?

_No response_

### Relevant log output

```shell

```