This is how it happens normally in non-covid world. There is no reason you should fire everyone publicly by the CEO, likely someone the employee never interacts with. The person also needs to know the next steps, for instance if they'll get paid of for vacation days, how to sign up for Cobra (if in the US), etc. You can cut off access prior to notice. Ideally they would all be done within a short period.

I've been around when a firm did a mass layoff. It's unpleasant and of course there are rumors and of course people are offended, but this is the correct way to handle it.

> This is how it happens normally in non-covid world

Not for me. I have been a part of two layoffs - the first one in 2010 - and witnessed multiple more since then. It's always been an "all hands" conference by the CEO to let everyone know then afterwards followed by a 1:1 to tell you about severance options (if any), Cobra, etc. Not the other way around.

When this happened to me, we knew ahead of time in general, and waited for individual meetings, and it all worked out. As it is, there's still miscommunication and rumours while all the now-locked-out people meet with HR and return computers and such.