It's at least as annoying as your initial impulse said it was...more so from the people who dictate UI down to a gnat's ass in every app we submit to their store, but somehow exempt themselves from even common courtesy when it comes to designing a page. I'm typing this on a mac, but for god's sake don't make excuses for them.

I'm not making excuses for it, I'm typing this from a ThinkPad (work, and personally have a Framework & a desktop I built, Android phone), it just amused me.

Yeah Apple site is borderline unusable at times. To much emphasis on looks and design at the cost of sane usability

Seems very on-brand then.

As a backend windows dev, how the hell is that even possible with just scrolling?

It's just an input right? Forget your expectation that an input causes a 'page' to move vertically; the screen is just a canvas that can change over time or in response to inputs.

(But, because it breaks your expectation is why people don't like it, call it 'scrolljacking' i.e. hijacking scroll behaviour, etc. It's worst IMO when it's done to make the page 'sticky' at certain banner points, so it takes unintuitively more or less scroll movement at certain points as you move down the page.)