The usual condition of a rental home upon moving varies between countries.
In The Netherlands, it is typical that the new residents need to lay a floor, put wallpaper or paint on the walls, perhaps install a kitchen, unless the new tenants agree to purchase those from the previous tenants directly.
When I rented in Canada and England, kitchen, floor, and wallpaper were all included, and I in fact had very little freedom to make changes that are normal to make in The Netherlands (such as installing wall-mounted furniture).
From German rental ads, I understand that a kitchen may or may not be already present (Einbauküche, meaning built-in kitchen), and I've read at the Welcome Centre Hessen page that where a kitchen is not built-in new tenants may negotiate to buy the kitchen from the previous tenants. But how is it for other aspects, such as floors or wallpapers? Photos are not a reliable measure to determine this for real estate photos normally include a lot that is not part of the rental (such as, usually, furniture).