Management & their HR henchmen, sorry, henchpersons: "But think of all the in-person collaboration that gets missed without the in-office presence!"
The actual in-person collaboration in the office: 50-100 person open space office with everyone wearing noise canceling headphones all the time to drown out everyone else talking in zoom/teams calls, not talking to anyone in person, reading reddit and watching youtube on the second monitor while waiting to clock out for the day.