I'd appreciate it if anyone could write something about the subject. I will be in the same situation when I reach Germany, my passport will have a validity of about 1 year, and it makes more sense to have the passport extended first. But if I change the passport before the extension of the residence permit, can we extend it while it is on the visa that will have a 10-month visa on it? I mean, they will give me the same passport with a visa, won't they give me a new one?
If I'm not mistaken, let me explain your interpretation as follows. I know that the visa period written on it doesn't matter. Passport duration is something else. already old passports have been removed and now they have passed to the system with jeeps. Extend your passport for 10 years, it will be better and more profitable for you. They give the visa for 3 months in the first place. After you come to Germany, you go to the foreigners' office and they extend it again. When I first came to Germany, they gave me 3 months, as soon as I came, I went to the foreigners' office and they gave a 3-year residency. but I had my passport expired for 3 years back then. oh guys, let me remind you this too. Do not forget that the foreigners' office never gives you a residence permit as long as your passport is expired, but it is a great advantage for you that it is long-term when issuing a passport, at least when the time expires at the consulate, you will get rid of it again and again without paying a fee. I paid 10 euros for a 210-year extension. Also, as I said, every time the passport expires, when you go to extend the residence permit, which the foreigners' office keeps short, you will be saved from the 138 euro for the second and third times.
Be sure to extend your passport before extending your residence permit. 
