Ebikes don't need licenses, pedelecs do.

However, your ebike (max 25kph pedal assistance) can be tested by police and if it fails the test (altered pedal assistance, motor >250W, ...) they are taken and later destroyed. People generally don't go over the pedal assisted speed because the bikes are rather heavy.

I converted my bike to an ebike. I could set it to 60kph but I don't because I don't want it taken away and 25kph is plenty okay imo. The first time I tested the bike i managed to go 40kph I think and that's when my legs couldn't move fast enough to drive the pedal assistance. It's only a 7 speed and at that time I still only had caliper brakes 😅. It just one of the first test rides checking the configuration.

Also, neither pedelec nor ebike are allowed to use/have a throttle. That would make them electric scooterbikes, which is a different category of vehicle with more/other regulation. My kit came with a throttle, but I didn't mount it.