I've been with the IBM Digital Business Group for a year now - I am, as of last Fall 100% remote, I know many who have the same arraignment.
Anyhow, last week I was contacted by my manager and explicitly told that I have 30 days to move to a co-location sites, several location options. I believe (this was not discussed) that I'd be terminated if I was not to accept it, therefore no layoff and no severance.