As a Dutch person, my recommendation:

get a folding bike. They're pretty cheap and useful primarily for biking a few km.

Alternatively, get an omafiets, make it look rusty and shoddy, but give it a few distinct characteristics so you can recognise it easily when stolen. Nobody wants to steal a bike that doesn't look valuable, and yet is recognisable. You can also twist how it steers, takes training to bike on it, but thieves will always fall.