This depends on the provider.
Current examples:
- Lime E-Bike: up to 5 simultaneous rentals
- Lime E-Scooter: no simultaneous rentals
- Dott E-Bike: no simultaneous rentals
- Dott E-Scooter: no simultaneous rentals
- Bird E-Scooter: no simultaneous rentals
- S-Bike: no simultaneous rentals