On Google Chrome for Android, when not using the responsive design, the arrow does not point to follow. In the screenshot below it instead points to close:
Update 2020-04-01: the bug is still present, e.g on https://travel.stackexchange.com/q/156445/1810:
Update 2020-04-05: the bug is still present, e.g on https://travel.stackexchange.com/q/156445/1810