Re-indexing does occur after an update, but iOS 26 consumes more battery life than iOS 18 anyways.
Just in one example video ( https://www.youtube.com/watch?v=0eCUkYJ8A98 ) they see the phone get hotter and the battery drops 13x faster during non-static sequences like checking notifications, etc.
Just anecdotally, my iPhone 16 Pro seems to last half as long. Before iOS 16, I got from 80% to 20% without a problem. Now, I charge to 100% and I still need to recharge throughout the day. Apple simply fucked up our phones.
Planned Obsolescence. Increased battery consumption = reduced battery life + user hostile repairability = new purchases. I've seen so many iDiots purchase a new iPhone when their battery conks out because the cost of repairs and original battery "doesn't justify it".
Just in one example video ( https://www.youtube.com/watch?v=0eCUkYJ8A98 ) they see the phone get hotter and the battery drops 13x faster during non-static sequences like checking notifications, etc.
Just anecdotally, my iPhone 16 Pro seems to last half as long. Before iOS 16, I got from 80% to 20% without a problem. Now, I charge to 100% and I still need to recharge throughout the day. Apple simply fucked up our phones.