Facade cracks 7 years after painting

Hello,
We bought our house from 1970 seven years ago.
It received a new coat of paint at the time of purchase.
I have noticed the following cracks.
Can they be left as they are? They do not bother me. Or do they have to be repaired necessarily?
And if so, how?

In the second to last image, where a stone is protruding, is there no ring beam, how far does the window lintel extend, is there a roof beam resting directly on the stone? The other cracks are cosmetic

Isn't there any need to worry about the thermal insulation system underneath the first picture, water penetrating or anything? The crack is probably too thin for anything to happen there? Here's a closer picture

Is this a prefabricated house? I am having difficulty explaining the vertical cracks.

Is that a prefabricated house? I find it difficult to explain the vertical cracks.

That is from 1970, I think stone on stone. What could that be?

What comes to mind: a few weeks ago we got a new roof. They made quite a lot of noise and there were loud bangs throughout the whole house, you thought they would break through the ceiling at any moment. Can such vibrations lead to something like this? However, I'm not sure if it was already there before.