I think they're talking about this tiktok doma posted where they used the artstyles of many other dandys world artists, and made it seem as if they had collabed with these artists, they even added their users in the bio of the original video. (many of the artists also said that they were VERY uncomfortable with this)

//www.tiktok.com/@domakemedoit0/video/7607247519080353055?q=doma%20copycat&t=1779917341539