Got laid off today, too. IT Manager.
Seems like the decision came from much higher ladder above, and definitely not my direct manager (she got laid off, too). I don't think there was much discussion about whom to let go neither, as leaders of my local unit seemed to be caught off guard as well.
REMEMBER, folks: Hold your urge to apply for internal positions, as once there was an offer of "commensurate position", you will NO LONGER eligible for the Severance Package (usually around +10K). Only apply when it's near the end of your notification period (i.e. 8/24/2023). And of course, you can ALWAYS apply for UHC / Optum jobs from outside as well (assuming you'd like to come back)!