Found these all over my house, should I be worried?

I found these little roaches all over my house; they're upstairs in the bedrooms and in the kitchen. I'm dreading finding the source of them. I never saw them before. We have a big garden outside; my parents think they come from outside, but they are starting to be really bothersome, and they're crawling in the bedrooms. Is my house infested, or are they just coming into the house from outside?

Btw I live in northern France.

https://preview.redd.it/vmwhlxnwhffh1.png?width=1080&format=png&auto=webp&s=3900ca79fed8fe1972dbe6b27ba95ad2554e1814

https://preview.redd.it/3p8ny98xhffh1.png?width=1080&format=png&auto=webp&s=72885dae3835755457fa85397856e6a977192e36