Flash I see everywhere, Tier not so much in Zürich. Is it new?
The German firms have models that have a brake that works mechanically on the wheels and this was the prerequisite by the city police after the lime accidents. Lime's scooters don't have a mechanical brake.
Lime has bailed out of Zürich after a serious accident which was caused by a scooter applying the park brake at speed due to some firmware issue.