Got Linux? Everything you own is now a paperweight
I have an oldish printer, an Epson C1100. Cheap to run, good quality. Installing it in Windows takes under a minute. Installing it in Linux takes 30.
I've got a phone with bluetooth. It's proprietary phone manager allows me to compose texts, sync with Outlook, create notes, move and copy files and play music. On Linux, it just doesn't work. Well, I can browse it, after spending hours downloading the packages, binding the rfcomm port, and spoofing bluezutils.
Scanner? 6 years old, has always worked in Windows, has never worked in Linux.
After the last Ubuntu upgrade, anti-aliasing in Firefox just...stopped.
Why do I persist? Well, if you want to move partitions about, having 2 systems renders it less likely they'll break. It boots like lightning, which when you want to browse RIGHT THIS MINUTE is handy.