UIScreen.main.bounds returning incorrect size

Working in Xcode, the iPhone 8+ has a screen size (in points) of 414 x 736.
This is scaled by the system, to display at (pixels) 1080 × 1920.

Reference: https://www.paintcodeapp.com/news/ultimate-guide-to-iphone-resolutions

iPhone 6 / 6s / 7 / 8 Plus:

1. Point resolution (UIScreen.main.bounds.size): 414x736
2. Theoretical pixel resolution based on @3x scale (UIScreen.main.nativeBounds.size): 1242x2208

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iPhone Plus has a physical screen 1080x1920, so:

1. UIScreen.main.nativeScale is supposed to be ~"2.60869565", but the simulator still shows it as "3.0", maybe on a real device it's different.
2. UIScreen.main.nativeBounds.size is also supposed to be 1080x1920, but on simulator it's not.

Check “Setting > Display&Brightness > Display zoom > Larger Text” mode is selected. It can be different if that mode is on.