Our devices do ever more and we demand more and more from them. This uses battery power.
Sometimes an update is released and, depending on the Apps the user has on their device, battery drain may increase or decrease. Samsung Developers investigate and if there is an issue, try to fix. But remember, every user has their own requirements from their device and it is not possible for any manufacturer to make it 100% spot on for every user.
If you have a further update to install, I would recommend you install it and see if it helps.
S24 Ultra