The alternative is on desktop always get your smartphone, open some app type a token or on the phone to switch to multiple apps to get your credentials. Not fun imho.

There are desktop apps for OTP, you don’t need a phone. And since you only need to setup an OTP secret once, doing it for your phone and pc isn’t that big of a deal.

I have my OTP secrets in 3 places, 2 yubikeys and my phone’s authenticator app, with the former meant for my PC.

For me, the key benefit of 2Fa is getting more security against leaked, stolen, phished passwords, and that still holds up.

If your vault doesn’t have 2FA too this doesn’t hold up though. Means you’re trusting a single service that can get hacked with all your secrets. Sure, your other accounts are more protected against leaks and stuff, but if your password vault isn’t, you didn’t really change much, just pointed the hackers to one single place.

Yes I know hacking a password vault isn’t some walk in the park and rarely happens, but the point is any leaks from it would be 10 times more catastrophic for you if all your OTP secrets are also stored in it. I’ll spare myself from that nightmare with the small inconvenience that is a separate, offline OTP app.