Maggie and Daryl already shared a pretty heavy moment whenever they reconnected in the back half of Season 7, but it’s not like there aren’t 100 different ways Glenn’s memory could get addressed by them again.
Glenn’s death will obviously reverberate in other ways, with the primary source being currently housed inside Maggie’s womb.
If someone says, “Daryl and Enid should discuss it, since Enid also looked up to Glenn before his death,” I suppose that would count.
Hell, it’s entirely possible that Daryl will feel some form of deeper kinship for the child, having played a part in the kid not having a father to look up to.