I can honestly say I’ve never found this in my personal experience, that’s probably because I update my iPhones every 2 years (usually). But my mum still has the iPhone SE (original) and my dad has my old iPhone 5S and both still work fine, that blows my mind when Samsung and Andriods can’t even support software updates for 3 years 😮
That’s not to say I’m not critical of Apple, I have been. Hell I was even looking forward to seeing what Samsung had up its sleeve for this event, I was tempted to dabble. However after watching that event i think I’ll be waiting for the Surface Duo from Microsoft. I was underwhelmed by Samsung and their prices are now ridiculous, even catching up to Apple!