Bad news...
There are worms in them there Apples.
Good news...
I only found half of one in mine while eating it.
I have never been an Apple fan, and they have a long history of doing things backwards.
Quote: "This fix will also cause users to think, 'my phone is slow so I should replace it' not, 'my phone is slow so I should replace its battery,"
That is the whole point.
If the phone is shutting down because the battery has deteriorated over time, then replace the battery.
Not, slow the processor down to hide the bad battery and give the illusion that I should buy a new phone.
Just another gimmick for them to sell more phones, as if putting out a new phone with each new feature wasn't enough.
Apple is all about their bottom line, and not the consumer's best interests, just some folks take longer to figure it out than others.
But hey, " a sucker is born every minute", and with the population boom that is about 4 or more every minute nowadays, so Apple will continue to have fans.
This is a greedy plot by Apple, and they should face a class action lawsuit over this type of fraud.
Making their operating system slow down certain devices to make the user think they need a new phone when they only need a new battery is fraud IMO.
If the bad battery is the cause of the shutdowns, then the consumer should be told that so they can replace it with a new one, instead of disguising it as something else by hindering the performance of the device's processor.
Some batteries are known to catch fire when being used beyond their normal life cycle, so prolonging the replacement could be dangerous for the consumer.
No reason for this move by Apple unless the alternative motives are considered, which make it dubious.
It's like having your mechanic telling you that you need a new engine when you only have a case of fouled spark plugs. (fraud)

Coding things my way since 1981 -- Currently using AppGameKit V2 Tier 1