iPhone 13 Pro horrible photos, blurry and too sharp sometimes, worst than iPhone X

Hello lmariscal,

Thanks for that info and for choosing the Apple Support Communities. If we understand correctly, you are having an issue with the camera quality of your new iPhone. To help with this, please follow all of the steps in this Apple resource and then contact Apple directly if you need any further assistance.

If the camera or flash on your iPhone, iPad, or iPod touch isn't working

Get Support 

Cheers!

Please also upload your samples to the most popular thread discussing the very same issue where more than 1000 people clicked "I have this problem, too" 253181534 - you have posted very good samples similar to what I taken but haven't time to upload. The cause the users suspect is over processing done by the SmartHDR algorithm that cannot be turned off in iPhone 13 + iOS 15, resulting in samples like yours or faces being applied a cartoon-like look.

In my personal opinion I don't think Apple is going to fix it in iOS 15, but please keep us posted what Apple support will tell you. Also separate from Apple support, please complain to Camera app feedback https://www.apple.com/feedback/camera/