Taking your last sentence including "building materials", generally their effects will be consistent.

I suspect that regarding repeaters, extenders etc, that their performances wrt to one another, will vary so much, it would be luck as to whether the "best" has been purchased/obtained, especially noting the variability of some well-known hubs.

=============

Re building materials, although probably not on this case, it reminded me that a housing estate built in the late 1970s near me, had harling/pebble dash applied to various exterior walls.

Within a few years, this was falling off in largish sections.

Not clear whether poor brickwork and/or the cement mixture used.

To rectify this, the relevant walls were covered by metal mesh, to give a good key/grip; and new harling/pebble dash successfully applied.

However today, this metal mesh is not obvious, so the occupiers could be suffering poor mobile/cell phone signals, without being aware why.

The mesh probably affects WiFi out in the gardens, thinking of that aspect -- whether welcome as an unintended "security feature" or not.