Genuine question; could MV Godzilla beat Shin?

My obvious first thought was, duh of course Shin would win, it's an eldritch abomination that's constantly evolving and the atomic breath is crazy. But Shin is an abomination that struggles to move, its atomic breath is easily exhausted, and it has taken damage from bombs before.

MV Godzilla is smaller and less obscenely powerful, but he's far more mobile because he's actually a naturally occurring creature that's not struggling to be alive. He's got way more energy and has shown a surprising amount of resilience. Plus, he's taken a nuke to the face, something which was speculated to be able to obliterate Shin.

I honestly don't know how to feel. My current leaning is that MV would start obliterating Shin, but it would probably be able to evolve in such a way that it could beat MV if it wasn't finished off quickly. I'm not particularly invested in a winner, I'm really just curious. What do you think?