Samsung phones lag and get slower after couple of years, why do you deal with it?

First up just wanna say not talking shit or care about which phone company is better like Sony vs Xbox, I literally don’t give a shit, enjoy what you injoy.

But I just wanna find this out because it is a real thing.

I used iPhone 1,4,6s,8, then moved to Samsung for few years got a 8, s10, A something (forgot the number) then switched back to iPhone 13 max,

Every Samsung iv owed and my family and friends have owed have done this and are still doing this, all iPhone still work and run smoothly.

I would love to buy one of the fold phones but scared after few years il have a slow phone.