If you want to use your phone like normal people do in 2025, and not relegate yourself to being a second-class citizen when it comes to simple things like paying for stuff, riding the subway, etc, your phone is either an iPhone or something that plays nicely with Play Services.
And that's just the remote attestation side. Many apps rely on Play Services themselves, and without access to them, will not work. Google gates access to Play Services through contracts, it is not open source or part of Android.
And it's not only about users. Headphone manufactures too. Their headphones need to support both iOS and Android phones.
Problem is, every year Android announces some new stupid-ass restriction or anti-feature that significantly degrades the capability of application software on the OS in the name of security. In other words, Google keeps trying to turn my Android into a shittier iPhone. It's gotten so bad that they recently floated the idea of mandatory notarization, and only marginally backed down after shittons of pushback.
Every time the EU passes a law intended to stop obviously monopolistic shit like this from happening, a certain brand of Ayn Randroid Apple fan comes out of the woodwork to decry the EU "forcing Apple to give away its technology for free". Which is absolutely bullshit, on two counts. First off, Apple sold its technology to us when we bought the phone. That's the whole deal with Apple: the OS is a bundle with the hardware. Ergo, them going to app developers and asking for a cut is double billing. Second off, and more importantly, the only reason why you even need the EU DMA is because Apple won't let you ship an app that is capable of doing what their own first-party daemons do.
I'm going to be honest. Every time I read people like you saying "you can just buy an Android if you want that", I get the same vibes as I do when I see, say, old boomers showing up at town hall meetings to oppose the building of the IBX[0]. You're just App NIMBYs, carrying water for a tech industry trying to turn every computer into the tech equivalent of a car-dependent suburb with restrictive zoning laws.
Now if only the EU could pass a law saying Apple needs to ship an Android app that provides all the missing functionality of AirPods on that platform. At the very least, I should be able to update the firmware on them.
[0] Inter-Borough eXpress - A proposed circumferential NYC subway line connecting Brooklyn and Queens.
These companies spend billions in dollars on PR agencies and lobbying. They spend the most on lobbying the EU out of everyone. The likelihood that zero of that goes towards writing such comments in places like HN is minuscule. And then there's the legions of actual Googlers and Applers here and elsewhere who have drunk the koolaid.
(Which, ironically, was also the strategy of Epic's entire Fortnite stunt...)