If you work with macOS or iOS users, you won’t be super surprised to see lots of “curly quotes”. They’re part of base macOS, no extra software required (I cannot remember if they need to be switched on or they’re on by default), and of course mass-market software like Word will create “smart” quotes on Mac and Windows.
I ended up implementing smart quotes on an internal blogging platform because I couldn’t bear "straight quotes". It’s just a few lines of code and makes my inner typography nerd twitch less.