I did Tech at a Big Company (not "Big Tech"). We had 2 of the lead engineers (who combined probably did > 50% of new product development) quit, the only competent Project Manager in the department, and the only 2 competent engineering managers in the department took jobs outside of the department. This was probably about 75 man years' worth of experience gone. Whatever that department will be when they ultimately replace all those people will bear little resemblance to what it was.

I didn't experience anything as bad as in that thread, but certainly things started to feel like they took longer as the work from home thing dragged on and people realized that it wasn't going to be a 1-2 month thing and everything would go back to normal. None of the "how is everyone feeling" crap, but I did start to lose respect for coworkers seeing how cowardly they were behaving towards WuFlu; and outside of a handful of coworkers I had to stop talking to them about anything not work related because of it.

I did notice that the company started using company resources to coordinate social activities (eg. board and video game clubs, sewing and knitting clubs) outside of work. The company started to take on this responsibility of being this "hub" through which the employees' entire social lives could (if the employee so chose) pass through, and it struck me as a highly inappropriate role for an employer to take as well as an HR minefield I wanted to stay far away from.

And that's before the company started finding the token minorities to give talks during mandatory meetings about some ethnic holiday they practiced, or spoke about how hard it was for them to climb the company ladder as a minority.