Thats because the point is we should not need an "ecosystem" in the first place in the sense that it is meant regarding commercial products. Everything is generic files and tools that can operate on them. No special "drmed/cloud app only file" or weird hoops to jump through to transfer files like iphones etc. You can use any tool you want to copy data or work on it. "Ecosystems" in commercial products are necessary because they don't want to make the data available generically so they build you special tools that only work with their stuff or make a deal to provide a limited interface with another company's product etc.
Edit: We use terms like 'js ecosystem' or 'python ecosystem' but that means a different thing from what ecosystem generally means with commercial products.
That a program like kde connect is necessary to communicate between a bunch of general purpose computers is the real funny thing. Its great that this software exists, but the reason it has to exist in the first place is depressing.
It's not necessary to do that, it's just convenient. I haven't tried KDE connect because I assumed that it was cloud-connected and I already do most of that using other tools anyway.
But KDE Connect would certainly be a more convenient method. Now that I know (or think?) it doesn't depend on third party servers, I'll give it a try.
There's a lot of space between "necessary" and "convenient" here. Sure, if you know how to root the phone and program it you can do literally anything.
But the bigger and more important point is that Android and Apple (whoever the parties are) have perhaps subconsciously colluded to exclude simple and important functions on our phones -- which are no longer "general purpose computers" -- if ANY of these machines are. E.g. anything convenient that the Apple ecosystem machines can do should be readily available anywhere.
Or to better generalize it, how I use my phone and computer ought to be limited only by the machine and my imagination. There should nearly literally be no such thing as a feature I wish for that I can't have, period.
The "wonderful" thing about the profit motive is no collusion is necessary. There will be natural gravity towards inclusion and exclusion of particular features.
The big plus, in immediate terms, is that you can extend it.
Pushbullet gives you similar features, across any 'regular' set of devices. Being closed source though is simply a way to justify a subscription, and datamine their paying customers.
Edit: We use terms like 'js ecosystem' or 'python ecosystem' but that means a different thing from what ecosystem generally means with commercial products.