Working from will NOT last
And any company that says it will is full of shit.
Sure, tech companies want people working at home because it buoys sales - hardware, security, infrastructure.
And, sure, everybody says it's working great. (They couldn't say it's a disaster because impact - shareholders, copycat behaviour etc)
It works right now because people know people in the business. In 2yrs time when lots of those people have been cycled out of the business, nobody knows anyone, the culture crumbles, discipline fades, work plateaus.
Welcome back to the office folks. The great/ awful thing about humans is change takes ages.