(I actually appreciate you doing a Kagi search for me, btw. I've heard great things about Kagi, and it would've been great if something came up there that didn't on DDG or Google.)
My whole digital life other than my iPhone works very well! Never better, really. Been Linux-exclusive for years after switching after the release of Windows 10.
Just a real pity that iOS doesn't provide something as simple as a proper export feature. A kicker is that the Photos app does allow you to "Export Unmodified Original" for multiple photos or even whole albums. But you can't do this to everything in Photos (what used to be called the camera roll). There's no "select all" button to work around this.
I have to retreat my statement then a little bit, in that it's easy to get your data out of Apple, with the exception of Linux. But Linux is usually the exception for any kind of user convenience stuff, and Linux users know what they're getting themselves into.
The point is, that since Apple is providing dedicated tools both for Mac and for Windows to get your photos off your phone, I don't think it's fair to accuse them of trying to lock in people to their devices.
Same with other stuff like bookmarks, passwords, etc.