[vollmond]

I find Steam to be the least-onerous (phone-based) 2FA tool I use - it pops up automatically when needed, and the codes are only 5 characters with a mix of letters and numbers, which I somehow find much easier to remember and type.

Granted, I don't know if those features involve security sacrifices, and I'm sure I'd get annoyed if I needed a separate app for every tool, but the user experience is more pleasant there for me.