Size discrepancy between camera preview and actual photo

Guidelines

• I have searched searched open and closed issues for duplicates
• I am submitting a bug report for existing functionality that does not work as intended
• This isn't a feature request or a discussion topic

Bug description

When taking a photo in the Signal Android app, the preview will show a certain way, and I'll frame the photo based on that.

After taking the photo, the result I'm presented with shows a lot more content than the preview would suggest, making it very difficult to properly frame stuff without having to crop in post and lose resolution.

Screenshots

Screenshot while taking/framing a shot in the Signal app:

(Note also how the camera UI/buttons are abnormally high up on the screen compared to other similar apps.)

After taking the photo:

Compare this to e.g. Telegram:

Before:

After:

There's some difference, but not as massive as in Signal.

Also compare with the stock camera app:

Before:

After:

Note how the stock app uses the correct aspect ratio for the sensor (4:3) and it correctly matches in both preview and actual taken photo.

Device

Google Pixel 8

Android version

16

Signal version

7.67.1

Link to debug log

https://debuglogs.org/android/7.67.1/2d446b555968c16eefb9989a2e022a7a9a5529a1a65a7816314fe97eb95da63d

Reproduce the mismatch on the stated Google Pixel 8, Android 16, using Signal 7.67.1, and review the linked debug log for camera-related context. Trace the camera preview and photo-capture entry points, comparing their aspect ratios. Done means the framing shown in the preview matches the captured photo closely enough for reliable composition.