“In comparison with the WHG, the EHG had much, I mean, really much higher affini

–“In comparison with the WHG, the EHG had much, I mean, really much higher affinity with the Ancient North Eurasians (ANE) – a branch of Western Eurasians that split early from the West Eurasians and mixed moderately with East Eurasians (~25%).”–
You can see ANE in many slavs.