- Go to https://www.ifixit.com/Teardown/iMac+M1+24-Inch+Teardown/142850 in a new tab
- scroll slowly down ...
2.1 in a ~15-30º angle - from the center/top of the trackpad to the bottom/left or right corner
2.2 before reaching the bottom (can even be in the in the middle of the trackpad) stop and release
No horizontal "rubberbanding"
On release the content animates back from the same 30º angle, which made me a bit nauseous while reading.
This has only changed a few days ago, see the pushlog
Checking briefly what Safari and Chrome are doing:
Safari is doing something weird; it scrolls only vertically until I stop the motion, only then it jumps a few pixel horizontally. When releasing the track pad, the page jumps horizontally back into position.
Chrome works as Firefox has before that changed a few days ago. It only scrolls vertically. If I increase the angel to over 45º it eventually completely stops the vertical scrolling and starts the rubberband animation horizontally.