Apologies in advance for writing in English, I am starting my German classes next month

I have work permit from 18 abs 4 s . 1. but my contract ends soon and I want to go on unemployment benefits.

For settlement permit, foreigners need to have contributed to the social security for around 5 years and also learn German language B2.

I wanted to know, what are the negative effects of going on unemployment benefits (since i will not contribute to the social system, but take from it) for the settlement permit, if I want to apply for it in 5 years? For how long unemployments benefit is not a problem?

Thanks in advance.