Hmm, not sure about that. Waiting for my TV to boot or update or connecting to Wi-Fi or my m music streaming app to 'think' for two minutes until it works at all is tedious. Don't get me wrong - it's still net positive. But I would instantly choose any option that offers less features if it would give me back this cosy feeling, that I'm the customer and not the product. Don't want to go into details here but it feels at certain edges that some of these integrated functionalities have simply not been tested for an actual user, but simply to offer ... more.
Writing that, it also could just be age bias. :-p
That's the main reason, Linux is still not as widespread as Windows - marketing. If you'd ship all of the sold PCs with a pre-installed Linux, nobody would give a shit.
And why would they? The vast majority of ALL computer users just use functions (email, office, browsing) instead of programs. Oh, I know, I know. If you ask, you always hear Word, Excel, Outlook. But to me that are just synonyms for the tedious everyday tasks most users perform. And if you'd stop training people to repeat tasks and klick buttons and instead train them to understand what they're actually doing ... sigh