We Shouldn't be forced into purchasing a Wifi USB adaptor that supports WPA3 or going back to using a USB cord. This is crazy, Apple is a global organisation with billions in profits even throughout covid. It is not ok that we cannot roll back IOS upgrades. It is not acceptable! My wifi hotspot was working perfectly until the IOS 15 update. Now my ***** smart phone will not even turn back on. This is just not good enough Apple.