I have to open the app. OTP Auth offers a Mac, iOS and watch app. I either take a quick look at my watch if my phone is not handy to see the code, or one click copy from the Mac. Same goes for the phone. It is very quick.
Sounds nice! I am generally all for the best balance of security and convenience. I should give this a try. Currently all my TOTPs are in 1Password/ Enpass. Having TOTPs separate is obviously the best choice for a consumer. Will try this and see how I feel about it.