There is definitely more footfall but no, it is nowhere near as busy as it was pre-pandemic. The occupancy rate is around 30% at the moment, and many offices are still return. I believe in the New Year it is expected to be much busier. I know that when I go to other parts of London, I am still taken aback by how much busier they are. The City, particularly at the weekend is still a bit of a ghost town.
But, not all parts of the City are equal, and don't forget Moorgate, there are definitely more people around there.
I know that some on this board who host incalls in this locale are busy, but I can't vouch for what busy means to them, and how much is new trade as opposed to regulars. Maybe advertise in advance and see if you get many pre-bookings?