True as long as the apps continue to work.
Many people buy hype about "Security updates" but in fact, 99% of people won't have security breach unless they click scam link or install some of these so called cracked apps or something l...
I think that's what Apple did before (slowing the phone down on purpose).
Otherwise in general, it's good to reset the phone once in a while, because the storage gets fragmented as time goes by.
That's shocking isn't it. So, long updates are just a marketing ploy to entice you with buying their phones. For the uninitiated they won't know that. But for us who are familiar we won't get tempted by it.