Woodpeckers are forest animals, not field or meadow animals. Where there is no park-like tree population nearby, the accusation against the woodpecker is probably to be attributed to the phenomenon that to us Europeans all Chinese look the same yellow. Or the damage was seen, but not the bird itself; then, in addition to the swift, even the house sparrow mutates into the "witness statements" as a woodpecker. Attics - not only for flat roofs, but also comparable gable finishing strips - with nesting holes integrated into the profile can help prevent such damage.
That birds plant food storage chambers in the high holes of bricks, I consider a rumor; that would have to be coincidences. Systematically, predation is not programmed in food-storing animals; they typically search for their own storage facilities.
I do not expect algae damage on new buildings at all, since the wall surface is planned. The phenomenon is rather a privilege of renovations, where the effective roof overhang is reduced because it is not adjusted to the new wall thickness, thus more driving rain exposure occurs.
What, however, is regularly to be expected with insulation board adhesive work is mold cultivation: in the adhesive layer, which can never form an evenly thick film, air inclusions inevitably arise. At the boundary layer between stone/plaster and insulation board, there is an abrupt density change; for heat, there is practically a pile-up accident at the entrance to the bottleneck. This leads to condensation in these nests. Double-shell wall construction without an air layer is simply charlatanry combined with bungling, both at the highest level. Unfortunately, Styrofoam is white and plaster usually white; besides, Styrofoam crumbles when pulled down again. Unless it is ripped off by an allergy sufferer, white mold is hardly noticed. It takes a long time until black mold breaks through the insulation board. But we will hardly experience that: I assume that in about ten years, triggered by a wave of cancellation or premium increases, the property damage insurers will have the whole stuff torn down again in rows after summer self-ignited ETICS facades, before the damage caused by this building-physical nonsense becomes evident on a broad front. With a bit of luck, the nonsense will even go to the grave with the image of a martyr (in the sense of a scapegoat of malicious gossip). I don't give myself five minutes until I am scolded for this statement.