“documented” is tricky because very little of this is super well documented, seeing as trans people are a super small and, even proportionately to their small numbers, understudied minority in medical science. this is largely a community communication effort and a lot of the knowledge is not done through academic study. that being said, it does seem like it’s talked about a lot less in the transmasc community, so possibly? on paper, the mechanism of action (tendon/ligament/muscle changes) goes both ways, but I haven’t really seen many transmascs talk about it, so I don’t know for sure!