You're completely ignoring the question. Do other smartphones start out fast due to new batteries and slow down due to the battery degradation like Apple or do they account for the battery degradation and keep performance stable?

Other smartphones either do the same thing (slow down) or just plain crash (most of them do this). It’s a common complaint.

The CPU speed decreases. So doesn't matter if it technically is still able to reach higher clock speeds. In reality it runs slower.

Right, as an alternative to random crashes. Bear in mind this is not an Apple problem, its a battery problem. All the other manufacturers have this problem, they just dont attempt to detect battery power fluctuations and mitigate it with throttling. They just eat the system crashes. Its got nothing to do with the CPU design, otherwise replacing the battery wouldnt fix the problem.

> All the other manufacturers have this problem, they just don't attempt to detect battery power fluctuations and mitigate it with throttling. They just eat the system crashes.

Really, because I have not heard of any other manufacturer with this problem?

Then you have not looked into it. Android forums have been filled with complaints over “random crashes” when doing something CPU heavy for years.

Care to cite any sources as I'm only coming up evidence that they don't (the last one is a forum like you said and the reasoning explained there is due to bloat)

https://mashable.com/2018/01/04/apple-slowing-down-iphones-w...

https://www.theverge.com/circuitbreaker/2017/12/29/16829512/...

https://www.engadget.com/2017/12/29/samsung-lg-claim-older-p...

https://forums.androidcentral.com/samsung-galaxy-note-8/8589...

Source: basic understanding of how batteries & CPUs work while following tech forums for decades.

This isn’t considered controversial