Aarhus looks relatively car-centric overall on satellite images. But I guess that is partly because it is small. It seems like you would have to live inside the few km of the city proper though.

I've lived in Aarhus the last 10 years with just a bike. Living downtown or near a lightrail stop outside the city, is certainly preferable though.

I'm sure it's a decent deal for anyone who has a connection to the place. There are just a lot more competition in being able to bike into a smaller city (which is almost any university town) compared to being able to live in a smaller city, being able to bike into a larger city or being able to bike in a larger city. For someone moving into the area it would then be more a matter of cost, opportunities and other things.

Is there more than one robotics company in Odense?

Yes. https://www.odenserobotics.dk/

Looks interesting. That website is extremely fluffy in the usual 'next silicon valley way', but it should mean that you could find someone who at least knows where to get some hardware done. Which isn't nothing for a smaller city.