Images cannot fit iPhone screen: erin1990 reported an issue after updating to version 2.9.0.beta4, where images do not fit on iPhone screens in both Safari and Chrome, but work fine on Android devices. The user also experienced the issue on MacBook Air 11-inch, specifically with Safari, and tried adjusting responsive post image sizes without success. Decorbuz pointed out that Chrome on iOS uses the same rendering engine as Safari, explaining the similar behavior. erin1990 eventually solved the problem by recommending iPhone users update their system to iOS 15.0.
Hello,
Yesterday, I updated to version 2.9.0.beta4
Now I find that images cannot fit users’ iphone screens, neither the safari or chrome.
And android users’s phone can fit successfully.
Maybe I did something wrong yesterday
Hope to get some suggestions or directions to solve this problem.
(Sorry for my poor English)
I also find this question occurred on Macbook Air 11-inch
Based on chrome, the picture can be display normally. 
While based on safrai
The left side and the right side of the picture are cut.
I find a function in settings, responsive post image sizes,
and I tried to add some values then refreshed browsers, nothing changed.
Looking forward to replay, thanks
The iOS version of Google Chrome uses the exact same rendering engine as Safari, so you’re not really going to notice a difference between the two.
Thank you very much.
I finally solved this problem by suggesting iphone users update their system to ios 15.0
