Bug on Iphone Safari browser

My Website looks perfectly fine on android browser but loading that same website on iPhone safari, my top section is looking weird. (Checked on iPhone 12 Pro)

Check the screenshot for reference, I have attached both android and iPhone screenshots to compare.

iPhone: Imgur: The magic of the Internet (H1 heading is going out of the screen on iPhone, safari)
Android: Imgur: The magic of the Internet (same link looking perfectly fine on android, chrome)