The problem is taxation for the employer usually. But you can become self employed and pay your taxes locally as your own employer and invoice your sercices to the company you work with.
This is what I did some years ago without moving borders.
Sounds like a problem for the next CEO. I got quarterly metrics to meet. When shit hits the fan cause all the talent left I'll just eject with my golden parachute.
There's a pretty good chance that every employee facing this offer is in a position where Dell sees them as replaceable. They want people who follow orders and not much more, so if you want to look at it through that filter Dell got what they wanted.
Unless somebody over there at the top is crazy, Dell would have had individual deals with the true innovators, decision makers, movers and shakers internally who are viewed as top tier and irreplaceable.
Good luck getting people to waste a ton of gas and time going into the office every day. Even before the pandemic, everyone was already using teams for meetings virtually. I think we had physical meetings a few times a year at most, and even then, some people were virtual.