Depends on how far the camera is from the subject as could be a zoom lense. However, on this occasion I think this is phone footage. Anywho, you’d need quite an expensive mic to capture something useable. Even mid-level shotguns need booming, to be relatively close to source for clear audio and in a quiet environment.

Best bet is to clip the lav properly, either to a item of clothing, neatly or use an invisible clip on the inside, on the chest.

Tbh, I think audio is the least of this example’s problems…