Scam is a bit strong. But I can see leadership wanting everyone back to office for whatever reasons, and out of fear of people leaving if they are forced to return to office, they came up with this 4 day work week thing to make it attractive enough for people to stay.
Calling it a scam is completely inaccurate, scams rely on people not being aware (on some level) of what they're signing up for, and on people making promises they don't intend to keep. Here it is perfectly clear what everyone's getting.
Tons of people would prefer a 4-day in-office work week over a 5-day remote work week. You may not, but there are many who do.
