At least being able to move your photos out of Apple Photos is a step towards not locking you into Apple's ecosystem. I don't think the ultimate goal is removing lock in completely. It's a fools errand to try and defeat it. The goal should be to free you from being locked into a company that takes it too far. This creates free choice and a market opportunity for another business to serve people like you.
Also ..
I thought Apple Music was added to Google Home?
I thought Apple now allows you to choose Google Maps as default mapping app?
I pay for Apple music yet I can't play it on my Google home.
I use Google maps yet in some apps it forces me to use Apple maps (even though I don't have it installed).
I use Google photos, which I can't use to manage my photos in the native way that Apple photos do it.
Airdrop only works between Apple devices.
I use Chrome and yet some apps will just open links in Safari (iOS).