Storage space problems

For some reason all of the storage space on my iPhone 8 has been used up by my apps which is weird because all of the apps that I don’t use I offloaded and the ones that I do use (mostly games) don’t take up this much space every time I try to fix it by simply deleting or offloading an app it barley makes a dent in the bar.

Because my storage practically full I can’t update my iPhone is there anything I can do is it truly because of my applications if so what do I need to delete?