didn't he lead early successes in RL which popularized it and culminated in protein prediction?

He's founder and CEO of the AI lab that build Alphafold?

Then maybe Sergey and Larry should also get the prize since they founded Google, which owns Deepmind?

They were not equal contributors to the seminal paper that got the prize. From another post in this thread:

"These authors contributed equally: John Jumper, Richard Evans, Alexander Pritzel, Tim Green, Michael Figurnov, Olaf Ronneberger, Kathryn Tunyasuvunakool, Russ Bates, Augustin Žídek, Anna Potapenko, Alex Bridgland, Clemens Meyer, Simon A. A. Kohl, Andrew J. Ballard, Andrew Cowie, Bernardino Romera-Paredes, Stanislav Nikolov, Rishub Jain, Demis Hassabis"

They bought it and it runs autonomously (or did mostly)

He writes software in different areas, so he has the potential to get a Nobel prize in any area soon.