Hi, Manda!
Great question, and yes there have been several videos done by WikiTree members, covering the topic of DNA confirmation. Here are some of them:
WikiTree and DNA with DNA Guru Peter Roberts
https://youtu.be/vovQMpQNrYg
WikiTree Leaders Mags Gaulden and Peter Roberts chatted with WikiTreer-in-Chief Chris Whitten about DNA features that have been integrated into WikiTree to help researchers confirm family lines.
DNA Confirmation on WikiTree
https://youtu.be/osOicsQLH1w
If you have taken a DNA test for genealogy and you have matches, and you have added your limbs to WikiTree you may be able to mark some of your ancestors as "Confirmed with DNA" . We'll tell you how to work with WikiTree to follow the paper trail and the genetic trail to DNA confirmation.
DNA Confirmation
https://youtu.be/-wcnPDxcMvM
This video will show you how to use your GEDMatch.com Number to confirm distant relative with DNA , a method called Triangulation for three say 4th or 5th cousins (Above 3rd) to a common ancestor on your WikiTree Profile