As I've said elsewhere, your data is the important bit. And at least in my case that is 100% portable. The winds of change are inevitable, but you can move house without too much hassle.
If think you can trust your data with a bunch of proprietary software companies, I'm not sure what to tell you.
> And at least in my case that is 100% portable
For now. Time and time again I see stories where people think they have redundant copies of everything important, and can reconstruct things when a company pulls out the rug out from under them, only to find they're missing something important.
Maybe you aren't. Great, good for you. You represent a teeny tiny percentage of the sum of proprietary software users. Again, I'm glad you believe you're safe and happy with the arrangement you have, but you're uncommon, and that's the entire point.
And for me, it's not just portability. Most companies are going to mine your data, use it to train AI, sell it to third parties, whatever they think will make them money. Or they just get hacked, like everyone does, eventually. You can protect yourself from that with open source. Not saying you don't still have to be vigilant, of course you do... but with proprietary software? Well, best of luck with that. Even with Apple, one of the few companies I think are reasonably trustworthy stewards of customer data, despite all the other issues I have with that company.