Xu Zou @xz_keg · Twitter · 2025-08-08 15:44 UTC As PQ.2 surges in NB.1.8.1-dominated regions, a descendant of XFG, XFG.3.4.1, outperforms other XFGs and surges in multiple countries. XFG.3.4.1 is 30% faster than XFG. It now represents ~20% of the XFG seqs, or ~10% of total global seqs.