Denmark already have regulations that stipulate that ebikes and escooters can't go faster than 20kmt and i feel that's reasonable. For scooters you're also required by law to wear a helmet.
We have the same/similar regulations in norway as well. I don't have an e bike, but I guess the speed limit must be annoyingly low. I often pass them on my regular bike in like 30 km/h.
I could be wrong and the speed limit is only for scooters but honestly I don’t care to look into it. I prefer my regular bike and until I’m old and incapable of using that I won’t change.
Edit: Learned a lot about this today. Cheers fellas for the replies!
IIRC motor power has to be limited to 250w, and the speed gouvenor is set to 24km/h.
I have one of those E bikes that only run the motor when the user pedals, and it wasn't hard to remove the speed limit. The bike paths here in Oslo are a bit sketchy sometimes, so I usually dont go above 30km/h, though my bike can reach 40 at full battery.