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weird, I’ve been using an iPhone for almost 10 years, and I’ve never had a problem with the scrolling. neither has anyone else I know or I’ve heard of who has been using an iPhone for the last several years.
Therefore, it is not a must. It is a want of yours
This primarily hints that you have no experience with a panel over 60hz. In terms of technical and practical difference it is like switching your bike tires from hexagons to round tires. The end result is a much smoother experience which also aids your vision.

Additionally from a business perspective pushing out this tech is an absolute must this year, not only to compete with the market as apple tends to be a late adopter but also to establish it as an new standard to grow on in the following 12-24 months.

TLDR: You don’t need to have a problem with something in order to improve on it.
 
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