Can't speak for the others, but Google is not being aggressive about return, frankly. Return will be based on regional case numbers, and the expectation is only for 3/5 days, low office capacity at the start, and I'm sure plenty of flexibility will be given.

I personally can't wait to go back, and that's the same sentiment I hear from most people on my team. HN seems to have become a bit of an echo-chamber of people who prefer WFH, but frankly I'm looking forward to the hybrid model.