There are probably some special cases where you may hear the difference, but it wouldn't be significant.
If you want to listen to music in highest possible quality, AirPods are for sure the wrong device. Probably also the AirPods Max.
You would use some very high end wired sound system or headphones, to get a very small difference for a lot of money :)
You absolutely can - the iPhone actually has a demo on it you can try moving your head around and the difference is extremely clear - it's not some audiophile thing.
If you read past the title to at least as far as the first sentence, it's a wider announcement.
> Apple has announced that it's adding 'Lossless' and 'Hi-Resolution Lossless' streaming options to Apple Music in June 2021 for no extra charge, as well as offering Dolby Atmos 'Spatial Audio' 3D music, too.