I do not receive mail on my MacBook Pro but I receive mail on my cell phone Samsung. Why?

Se if an App Password helps...

https://support.google.com/accounts/answer/185833?hl=en

Did you change your password lately?

Who is your eMail provider?

Is the account set up as IMAP on gmail, on your phone, and on your Mac?

I am sorry to point this out, but this is an Apple forum. You might want to pose your question to a Samsung forum.