iphone 13 battery drain problems

dear apple what the **** is wrong with you guys please fix this iphone 13 series battery drain issue caused by your so called yearly update of ios16 we users pay a lot of money on your products like iphone13 to get what a 4hr screen on time from such a expensive phone. come on man please resolve this ASAP it is starting to become a headache for me and i suppose for all the iphone 13 users all around the world. also never gonna buy any apple product from now onwards poor service from you guys!