Have you heard Come On to Me ? (https://www.youtube.com/watch?v=ZeJLrtFY7Ds) For me this is the most Beatles like song by Paul done after Beatles.

Then you haven’t looked hard enough!

Junk, Uncle Albert / Admiral Halsey, Too Many People, and Heart of the Country (to name a few) would have easily fit on any later Beatles record.

'Maybe I'm Amazed?' is a terrific song. How about it?

check out Temporary Secretary, in 1980 I never heard anything like it

Jet. Band on the run.