Depends.
I switched from MSWind to Linux back before Linux had a decent word processor, because I wouldn't agree the the MS EULA. Currently my cell phone doesn't have ANY apps, and it wouldn't support them were I willing to try to install them.
OTOH, I have som apps installed in my browser, e.g. NoScript.
But, I *do* have a Google sign-on that I occasionally use. And I rarely block it. I don't have g-mail, because I don't like giving up that much control. This doesn't fool me into thinking my email is private, but it does fool me into believing that it won't just disappear on me. (I know, however, that an email program can do that to you, and the idiot providers of the email programs don't really care about any email that's over a month or two old.) What I need is something that can export emails from the browser into a commonly used format. I CAN edit them as text, but THAT's really obnoxious.
So there are some things I will accept for some levels of intrusiveness. But not all.