I currently have a s10 and I would like to upgrade, I'm going for battery life for long gaming, not that heavy on aesthetic and camera quality.
It would be good if it was abit more on the affordable side.
I generally say to people that if you're in the Apple world... have iPads, use Apple Music, this and that, then stick with an iPhone. It's a good suite of hardware that all just works together nicely.
If not, then consider Android.
Don't limit yourself to Samsung.
My old Huawei P30 Pro had a good battery, 4200 but very quick (40W) charging. Whereas the Samsung Galaxy S21 Ultra has a 5000 battery but only 25W charging - so slower by nearly half.