I think Stranger Things introduced a lot of newbies to the TTRPG scene and also removed some of the leftover satanic panic and 1980s revenge of the nerds stigma to it by incorporating it well into a 80s send off series about kids growing up (something that resonates with millennials and zoomers and tbh even genxers and boomers). This injection of new blood also coincided with the new financialization of DnD (mugs, books, tshirts, all the branded lifestyle crap we now and love). As of now I honestly feel that the most likely outcome is that if DnD is truly horrible on OGL designers then we could see a mass exodus of popular OGL makers to Paizo or other systems which could then drag along Youtubers and eventually streamers (especially if DnD tries pushing the liveservice digitized market they always seem to dance around but also mention is there and ready to be used to extract more from the IP during investor statements).