One arguing that sn established0 pattern of behavior will continue into the future is not a slippery-slope fallacy. There is nothing fallacious about arguing that Apple will continue to make the OS more restrictive in the future, based on a profit motive.
"The core of the slippery slope argument is that a specific decision under debate is likely to result in unintended consequences." [1]
I don't see any claim of unintended consequences here.
"The core of the slippery slope argument is that a specific decision under debate is likely to result in unintended consequences." [1]
I don't see any claim of unintended consequences here.
[1]: https://en.wikipedia.org/wiki/Slippery_slope