It drives me nuts that Samsung Notes is frankly one of the best notes apps out there, yet is only properly accessible from phones and tablets. I'm not using a notes app that I can't sync to my desktop, and I'm sure as shit not using OneNote to do it.
Samsung makes laptops, why do they not consider it a priority to have a proper end-to-end UX for their Notes app? (Apple, gasp, does this very well.)
There are plenty of awesome alternatives, of course, but still. It's right there on my phone and I'd love to use it, but if I can't put my phone down and continue working on that note on my desktop, it's wasted to me.
/rant
As it is, I mostly use Keep for basic stuff (since it still lacks formatting), and Notion for more extensive pages.