I don’t know how common it is anymore, but it definitely was a few years back. You knew a computer was infected with everything when you saw a stupid cartoon dinosaur or something as the mouse cursor as soon as the pc booted to windows… I think it was more about what was bundled in the download from scummy websites doing the damage though, not the actual cursor files. I still cringe though if I see a non-standard cursor in windows, like PTSD-esque flashbacks…
My biggest hurdle is honestly that GrapheneOS only supports Pixel phones… I had one once and hated it and honestly don’t know how much of that was because of google’s android or the phone itself and am reluctant to buy a new pixel phone to try GrapheneOS and find out I still hate the hardware. I’ve had a much better “out of the box” experience with Samsung phones (and love that my current one has an sd card slot and headphone jack - but I know that’s pretty much non-existent on new phones) but am finding they are so locked down and closed off by Samsung you can’t really put anything else on it and have it work properly as far as I can tell.
It’s time for a new phone, and I’m honestly not sure what to do… The easy route seems like getting a pixel and putting GrapheneOS on it before doing anything else, but I just don’t super trust that the hardware isn’t going to drive me nuts…