They don't do anything to slow down old iphones? They admitted in 2017 and paid out.
See screenshot below.

I have 2 experiences with apple. At work the people I worked with always came in for help with their apple devices, they wanted to download photos or transfering music but we were unable to help them because apple forces you to use apple software. 
Something simple you can do on Android you can't do with apple. For some reason they didn't even know themselves that you are forced to use apple software.

The other time someone gave me a free old apple laptop and it was slow and and could barely function with the apple OS but as soon as I installed Linux on it. It was extremely fast. So the issue here is apple stops updating their OS and then people are forced to purchase a new laptop. People seem to think the hardware is outdated but it's apple wanting you to buy a new laptop. The hardware is fine. That's how they make money.

I had the most issues like overheating because Samsung loads garbage and customizes their OS to load a lot of their apps. Samsung also artificially slows down phones so their customers think the phone is dying and need a new a new one. You can search it online.

I'd say most phone manufacturers do that to make money. 

As for hardware. Phones have definitely gotten stronger then past phones. 

I'm not saying one is better than the other. I'm saying both companies play dirty but one company is much overpriced than the other which is apple.

All the phones I bought have been Chinese brands. I earse the OS and install a custom roms. The price for the phones are usually 300USD.

I have saved tons of money and those phones are still running extremely fast. The problem I face is the OS developers stop developing after a while and move on to developing on newer phones.

https://mar101xy.com/uploader/images/2024/09/21/apple-slowing-down-old-iphone.png