Steps to reproduce:
On this website: https://www.utwente.live/opendays/online-bachelor-open-day/
On the first carousel under the title text 'Join a study round' (pic below), the arrow buttons on the side don't seem to function. Scrolling horizontally works fine. I originally thought the website wasn't optimized for WebKit but it seems to function fine on Safari, thus the bug report.
It seems to behave the same way in compatibility mode.
The carousel should move 1 card to the right/left at a time when you press on one of the buttons.
Orion and macOS:
macOS: 12.0.1 (on Apple Silicon)