actually, did u know that since 2020, the number of PBNs hit a peak and started dropping by 20% annually? so if u got a solid niche and keep footprints clean, u can still pull decent SERP moves but only if u diversify links and keep that churn rate high. 3-4 sites per niche max and rotate hosting every 3-4 months, u should be fine in 2025, imho