Yes, Paul McCartney and Brian Wilson admired one another. Brian Wilson of The Beach Boys wrote the amazing "God Only Knows" ... supposedly then inspired the Beatles Paul McCartney to write "Here, There and Everywhere".

Both amazing songs.

I see what you did there ;)

Yes, Paul McCartney is a big fan of the album Pet Sounds. He bought a copy for each of his children to teech them about music. He elaborates about Pet Sounds a great deal in the interview below:

https://www.the-paulmccartney-project.com/interview/paul-mcc...