Facade cracks 7 years after painting

Would it make sense to remove the plaster at that spot and see if the crack continues underneath?

So I was just at the garage. You have to search to find the cracks in the sunlight, they are that small. I would estimate 1-2 mm. Just lightly on the plaster. Then they should be negligible, right?

Here is a picture of names. Can it be better assessed this way?

Tap the cracks to check if there are cavities underneath.

We have an external thermal insulation composite system below, I think there is Styrofoam underneath. In any case, when I tap with my hand, the entire facade sounds hollow. I googled it once, and if I understand correctly, it is called [Wdvs] and is it normal for it to sound hollow here?

Is this a prefabricated house? I find it hard to explain the vertical cracks.

I rummaged through the documents. It is a solid house in timber frame construction. That’s how it was stated in the real estate agent’s documents. Regards, Basti