Bro let me tell you one thing,
I am currently using realme narzo 20 pro which having 65 watt charging and no issues. Still excellent battery life.
Nearly 3 years of experience.
I purchased in October 2020.
Now tell me, is your misunderstanding about fast cleared or not?
I keep my devices for several years! 2 Redmi devices nearing 7 years still deliver 7-9 hours SoT.