I have Samsung A50s (3.5 yrs old) and found that if I didn't agree with many services that offers to activate/agree with (for first time use or EVERY TIME after factory reset) than battery easily last for 48hrs. plus (I have very very low use of mobile.. for more clarification you can ask me here for uses) and this Samsung mobile have Exynos 9611 (10nm) Processor.Samsung F14 or the more recent F15 - you need to uninstall some bloat. OneUI here is the limited version, no Knox, But the battery is magnificent.