Datapoint from mid of August:

Club Lounge was closed, benefits (i.e. I used breakfast and happy hour) can be used at Floret restaurant
The Ambassador fruit plate was follied but still present
The decorative pillows were removed
There were restrictions of how many people can use the elevators simultaneusly
As expected masks were required in the public areas
There was a sanitizer at every floor
Rooms were IHG Clean sealed (didnt travel during the pandemic I guess this is normal)

Other than that everything was the same, service great as always.

I had a one night stay so cannot comment on the house keeping part.