Earlier quoted context omitted.
Not sure what the OP meant but I too feel locked into them. I dislike both the company and in some cases the product, but they currently provide the least bad option - almost certainly for laptops and probably for phones.
I feel like a provider having the 'lest bad option' is a LOT different than 'locked in'. Locked in means that you are forced to keep using an inferior product even if a better option exists because you can't move your data; not having a better option is something else.
The latter is a huge reason companies strive to establish "platforms" and suites of connected apps - even if competition is cheaper/better in a vacuum, it still may not be worth the effort to switch if you're already established within an ecosystem. The goal is vendor lock-in even if they're not holding your data hostage (though they might do that too).