Why do dna companies underestimate my steppe/euro ancestry

[Borealis]

People who have similar levels of steppe to me or lower consistently get higher amounts of European components on sites like gedmatch, 23, ftdna, wegene, dna land and others. Why is that? Is there a bias here

[Dna8]

It is not so much a matter of whether or not there is a conspiracy at play.. there is.. the real question is, how deep, exactly, does this conspiracy go..

[Slavic Italian]

Probably lack of samples. 23&me just tripled my Eastern Euro.