Yesterday's layoffs seem to have been framed as reorgs. Some teams have been wholly dismissed. Some have been consolidated (two teams -> one team).
There does seem to be a pattern that favors people in lower cost regions. For instance, two teams get combined and the higher cost manager is laid off. Or a whole team is laid off, but those duties are being restaffed by people in a lower wage office.
There was a townhall for the past wave of layoffs where the exec in charge preferred to take the meeting via video call from a huddle in the same building as the auditorium where the townhall was taking place. Just to not be seen with the employees.
Seattle is actually in the tier below SF and NYC, which makes its pay around 10% less. However, it's mostly a wash when you consider that Seattle doesn't have state income tax, so your net is roughly the same in both places.