I misunderstood. I bot a new macbook to stay with apple in daily live. However even there I am using a new user and noch icloud anymore. Other providers such as Proton suite or others are pretty convenient. The 10 yr old macbook pro cannot be updated anymore, that is why I am using the old device with dual boot for linux based systems. I am actually unexperienced and moderately technical. So old device is for experiementing with new better privacy tech. The new Mac though is also necessary for my daily needs