About FLAC Music Files in iTunes. For iPhone 7 series or Later

I already know that it says Apple iMac and there Laptops don’t use FLAC files while importing them to iTunes on Mac. But one day I went to look online Apple’s site on my iPhone 7 Plus Technical Specifications and I found audio Formats that the phone has some kinda setting of FLAC format on the iPhone 7 series and later towards today on the iPhone XR, iPhone SE 2, and the iPhone 11 series. Does anyone or can anyone tell me why there’s FLAC Format on the iPhones 7 or later but doesn’t support iPad or Mac? Because in general when you either buy songs from the iTunes Store or or you import songs from your Mac to your iPod, iPhone, or iPad, the files are converted to AAC format under whatever stereo bit rate size you choose up to 256Kbps. So could anyone tell me what’s up with a FLAC format in the iPhone 7 or later?

ps if you’ve never heard of that in iPhones, go to Apple.com > Support > type Tech Specs, then click on > find iPhones models specs, click on a iPhone 7 or later or click on your iPhone model you own and scroll down to the tech specs on the phone till you find audio specs.

thnks to all for your support.