I would say both of your quoted statements at the same time (and often of myself).
Someone's use of OneDrive *does* has a small but, collectively, significant effect on (in my case right now) Linux culture. The institutions that create proprietary software are, inherently, not neutral. They seek to dominate.
As mentioned, I use proprietary software myself - I make compromises - but I don't kid myself that doing so is good or even neutral.