This is about the topic of flat shares:
What things does this sentence relate to?
Example: My laptop is not on duty? Etc?
What do you mean by: mine is not yours?
That means something like:
Keep your hands off things that do not belong to you. You may live in a shared apartment, but that doesn't give you the right to simply use other people's items.
My food in the fridge isn't your food just because it's in the common areas ^ - ^
So this sentence: relates to many things: like my food, my laptop, bike? Etc?
By the way: I do NOT live in a shared flat. I'm learning German from the book😁😁
By the way: I do NOT live in a shared flat. I'm learning German from books
All well, I didn't mean to say that it affects you personally.
So this sentence: relates to many things: like my food, my laptop, bike? Etc?
Yes, it applies to many / all things. It is a general sentence without a specific indication of a specific object.
By the way: Your German is already very good!