In the previous few pages, I mentioned that the battery has gone worse after updating to 26.5 in my 17 Pro Max. I think, I might have found the culprit, but not sure why is this happening.
Apparently, if I move back to some previously set lockscreen (that was created before updating to 26.5), the battery hogging reduces by atleast 15-20%, which was my original concern. Initially my thoughts were that pride wallpaper is eating up resources, but then I changed to a black wallpaper but the battery performances didn't improve. Yesterday I switched to an older homescreen and voila, the original (or near to original) battery performance is back.