Where there is proper infrastructure this works relatively okay. Where there is no infrastructure scooters take the pedastrian way as roads are dangerous.
Copenhagen banned rental scooters from the city centre.
For some reason, people were finishing their ride and leaving the scooter in the bike lane, across the sidewalk, across a pedestrian crossing etc.
The rental companies were intentionally blocking the sidewalk in the city centre, arranging the scooters in neat lines overnight. Presumably for visibility/advertising.
All this happens to a much lesser extent with the SV-style ebike rental companies, though it's still not unusual to see those parked badly.
It happens rarely with the manual bike rental company. I think they make you photograph the parked bike when you finish, so they are almost always in a bike rack.