I didn't know other users had the same battery drain issue after install of IOS 14.2. My iPhone X was suddenly losing charge. in the middle of day rather than going all day with plenty left over. I had scheduled an Appointment at Genuis Bar to replace Battery. I now have cancelled appointment, will wait for the next IOS 14.3 update to see if they have corrected this issue..
Ojjisan
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution