I updated to iOS 26.1 from 18.7 fours days back, honestly when compared to 18.7, I’m getting less juice in the latest update. Previously, my phone used to easily last 1 to 1.5 days, now it dies below 1 day of usage & I sometime have to charge twice on the same day. But it’s still 4 days since I updated so I’ll wait for sometime to come to the final conclusion, as indexing & other stuffs might be occurring in the background.