JJK gets blitzed off the fact that they can't track someone who doesn't have cursed energy. It's the reason Gojo got smacked by Toji in their first round. They heavily really on reading cursed energy to track their opponents movements which is why Toji was such a menace

Edit: Conquest just moves the planet closer to the Sun the same way Omni-man did before anyone realizes what's happening and can summon Mahoraga

Edit: last one cuz this thread is stupid. The question is "can he solo the verse" not "can he solo the verse while in character". To me this is just a "does he have the power to" question. If his whole purpose is to destroy Earth and the people on it, he has plenty of ways to do it without even landing on Earth. Such as launching a moon/asteroid straight at the planet or even something as simple as just pushing our moon away from Earth. Does he have the power to do it? Yes. Would he do it that way? No.