This claim is false. I looked up the claim and was directed to dermatology times. It talked a lot about the The American Hair Loss Association (AHLA) and how they warn against the misuse of Ozempic (semaglutide) and other glucagon-like peptide- 1 (GLP-1) receptor agonists for rapid weight loss. While these drugs are FDA approved for type 2 diabetes and obesity. While the misuse of these drugs can lead to significant hair loss and to permanent hair loss. Now I didn't want to just use one website, so I checked where they got this information which was from " Blackburn GL, Bistrian BR " with a quick check I found that they are part of the National Library of medicine and they published an article about it. It states in their words "GLP1-RAs exhibit higher reporting of suicide, hair loss, and aspiration" So after careful research ozempic does not promote hair growth instead it can lead to hair loss.
Resources: https://www.dermatologytimes.com/view/misuse-of-ozempic-for-rapid-weight-loss-can-cause-significant-and-perhaps-permanent-hair-loss
https://pubmed.ncbi.nlm.nih.gov/39264502/