Will all the chat records of qq Momo WeChat (including voice, text, transfer and red envelope) occupy the memory of the mobile phone?

If you don't clean it for a long time, it will take up a certain amount of memory space, because some pictures or characters will be cached in your mobile phone, so that you can open it next time without being stuck. If you clean up the space occupied by QQ and WeChat frequently, it won't take up too much space.