I’ve noticed a connection that as the few units around me have recently renovated their bathrooms and kitchens that water hammer has definitely started to be noticeable.
I’m sure old pipes touched by new plumbers and new fittings throws things out of sync to how ever they were before. Consequently when someone advises they are about to start their renos it is worth mentioning it to the committee and the owners and the tradies how things are before, and what you will expect them to do should things change thereafter they do their handiwork.
It can be an expensive correction if they need go back and remove tiling to access the pipework so remind them of that before they get busy.