Abandoned taiga villages have less cobweb, because it only replaces windows. They still have missing doors and brown glass windows or windows replaced by cobwebs. On the other hand, the other abandoned village types have cobwebs replace all blocks that are part of the village houses, rather than just the windows.
Steps to reproduce:
(1) Find an abandoned village with the taiga style.
(2) Find an abandoned village with any other biome style.
(3) Compare how many and what blocks are replaced by cobweb.
Observed results: The taiga style abandoned villages have cobwebs replace only the windows (not the roofs or walls).
Expected results: All styles of abandoned villages should have a random subset of all blocks in houses replaced by cobweb.