Thank you very much. Appreciate, will try first ready bikes

A question from a newbie. After a decade without a bike, I want to get one again. Information about the frame geometry doesn't tell me much. When looking at reviews, I see that some frames are described as race ready. Maybe my question sounds wrong, but I'm asking for advice on choosing a frame. I'd like a bike without an aggressive fit, not for sports, but for simple weekend rides or commuting. Or maybe I am completely wrong and unaware, and the posture depends on fork stem or other components. Thank you.