To go into a little more detail about the Moria SBS question before GLR makes a video about it...
I don't know how one just "washes up" in Wano when it's elevated above sea level with waterfalls gushing down every side. That in itself is a whole story Oda is neglecting to give us. I mean, it's not an impossible feat given the same thing happened to Kawamatsu and his mother. But generally, getting to Wano is a difficult task that is not accomplished by random chance. But either way, the wording directly implies that, like Kawamatsu, Moria became shipwrecked. This may very well have orphaned him.
I also don't know how one is simply given the name of the country's royal dynasty. Was he actually adopted by a Kozuki living in Ringo? It also strikes me as a bit odd the people of Wano would warmly accept an outsider who had chalk white skin, pointed ears, fangs, and devil horns given how they tried to kill Nekomamushi, Inuarashi, and Kawamatsu. But I guess that part's less of a stretch.
When the "Kozuki Moria" thing was first revealed, I went off on a huge rant about everything it implied and everything it recontextualized. In fact, even before that cover page, I was re-watching the Oden flashback and I picked up on how fishy it was that Ryuma's grave was broken into while Moria was fighting Kaido, implying Moria didn't actually do it, and that Moria didn't even have a motive for graverobbing since he wasn't building a zombie army at that time. Now it's been explicitly stated he was in Wano for purely altruistic reasons, fighting for its liberation from Kaido. Exactly as I theorized. I went on to theorize that the people of Ringo helped Moria fake his death and they gave him Ryuma and Shusui to keep safe if Wano fell, but that conflicts with new information that Moria was presumed dead after he fled in shame. It's not implausible that he had help from at least one person, or that he took it upon himself to safeguard Ryuma as the very least he could do in his defeat. But we're genuinely missing most of the key details about this story. A lot of you definitely didn't realize there even was a story.
One other thing of note is that we just learned Moria became a pirate before Roger's execution. He was allowed to leave Wano (which is itself unusual, but I mean, he also wasn't a native so clearly they made an exception) and set out to sea as a pirate before he eventually wound up in Loguetown to witness that fateful day. His journey started in the New World shortly before the Great Pirate Era and the rise of the Yonkou.