I have seen many black screens of death ocurring randomly to various S21, even if it not too widespread to occur on everyone's S21, it can be a potential threat, and someday it can happen to me or happen to you, if you have that adapter (hoping touchscreen still works) you can manage to connect your phone to the TV, and of course, if you connect it now before the catastrophe you can avoid doing the initial setup or choose if you want to use DeX or only screen mirroring which can be more useful, doing that you can save your files to any other site and send your phone to service so they can fix it, owning an adapter can be a life saver, so, go now and you will be safe in case of