I do not believe my life is either more or less free and enjoyable as a consequence of the number of Apple devices and services I use.
I concur but interoperability does speak to the value of plain text.
I find that Apple devices work extremely well together and I speak for many years’ experience of them.
They do most of the time, but there are always the little things. For instance, AirDrop can be finicky to the point I don’t even think to try it anymore (although I think it is better than it used to be). I have a helluv time with AirPlaying to my HomePod. As I type this, I can’t Airplay to any HomePod Mini, only full full sized HomePods (it has to do with my router and having two 5Ghz channels, Apple products do not like that). I can come up with lots of times over the years where things just stopped working correctly together.