Background checks in naturalization process

Hello all,

In the process of submitting my naturalization form. I lived in another EU country for about a year (9-10 years ago in 2015, to study).

Before that, I lived as a minor in my home country and returned for about 2 months after going to the other EU country.

Will I have to provide a background check for the EU country I lived in for a year? From my amateur research alone, it's required for every country that I would have stayed more than six months in.

Or my home country, even if I was a minor at that time?

I've not committed any crimes abroad, nor in Germany.

Thanks.