Conor actually does have great boxing skills. He uses his feet and has a ridiculous straight left. Very accurate, but it will be so much less powerful with boxing gloves, and he doesn't have much variety in his boxing attack because he doesn't need it.
Floyd is much older, but is also a well known performance enhacing drug user, which is why all these guys can continue to fight into their 40s. So that will certainly offset that.
But this is most likely going to be an absolute clown shit show. You thought Pacquiao and Floyd was boring? Floyd is going to use his illegal and muddy tactics, of holding, ducking way below the waste, and elbowing, all of which are explicitly illegal in boxing.
This fight will be ugly and boring, and Floyd will not line up for Conor to get his shots off, and Conor has zero ability to hurt Floyd on the body with Floyd's technique.
If this fight happens, it will be a very very very boring points win for Floyd. Floyd and Conor both know this. They don't care. They just want to cash in, well that has always been Floyds MO, hating the fans.