In the New format under Events, Residence and others are shown as 0 sources. These all came from various records, but mostly census records. It does not appear that adding the new Other Information Tag / Residence for an individual's Census record will also populate the rest of the family members. Perhaps it will when a new Census record is added to a family, I have not checked that yet.
Still it would be nice not to have to now tag a source to the thousands of census and other Residence records going forward. It is good practice to view the sources anyway, so many of us will ignore the lack of 0 sources under Events, knowing that there must have been an association to a source that generated the Residence. It is nice to have the residence tag to add going forward, but quite tedious to go back and explicitly tag the original source.