Why wouldn’t this linear ease calculation work?

[brandondurham]

It works in every other scenario I use it in.

scrollIntoView(el, { ease: (value) => value, time: 15000, align: { top: 1 } }, () => {
	console.log('Finished scrolling!');
});

[KoryNunn]

The target scroll position of a scrolling element can change dynamically during an animation, for this reason, the default x => x ease will be logarithmic, or effectively an ease-out:
https://github.com/KoryNunn/scroll-into-view/blob/master/scrollIntoView.js#L89

You can get a somewhat linear result by passing an exponential function to ease

x => Math.pow(x, ​‑3) might work for you?

[KoryNunn]

Hopefully this helped you! Closing.