Yes. I'm not able to use the app on any of my Apple devices. I thought it might have been due to the recent software update, but I even tried on an older iPhone I haven't updated the software on in a few years and even it didn't work. Surprisingly, the app works on my Samsung tablets and I can login into the Nest website from my computer and mobile devices. I called Google support and they have no clue what's going on. Took my information and said they'd escalate the issue. Hopefully they can resolve it soon. I can still control my thermostats from the Nest website or the Google Home app, but the Google Home app doesn't allow me to see the readings on the temperature sensors or even switch to using them. I'm also not able to see my Nest smoke detectors from the home app. Sad to hear you're having the same problem, but glad to hear it's not just me.
