I've heard from a friend that the way they found someone was laid off was by Google Calendar suddenly removing the person that was laid off from invites while in a 1:1 with their manager. The manager had no context. That kind of inhuman feeling is what exemplifies the state of layoffs in the modern day.
Last time I was laid off (2022) it worked this way. It was a remote job - I was pulled into a random 1:1 meeting with my manager and immediately afterward I found all my permissions/access was gone.
Last time I was laid off (exactly 1 month ago) even my manager (allegedly) didn't know I was laid off until after my offboarding meeting with HR. Neither did the manager of the consulting engagement to which I was assigned (thankfully my now-former employer didn't terminate my accounts until noon, which gave me time to reach out to her on Slack and coordinate returning the client-issued laptop I had just received days prior).