IMAX Enhanced version of Avengers: Endgame (2019) is a special format that provides an expanded 1.90:1 aspect ratio , offering up to 26% more picture

Now, let's discuss the topic of movie downloads and piracy. Downloading or sharing copyrighted content, such as movies, without permission from the copyright holder is illegal in most countries. Piracy can result in significant financial losses for the film industry, as well as undermine the creative process.

3. Comparison: Is it better than the standard 4K?

Yes.

Only standard widescreen (2.39:1) exists on physical Blu-ray.