How to get all lost mail from all emails and subdomains

What is the name of the domain?

example.com

What is the issue you’re encountering

I can’t adjust

What steps have you taken to resolve the issue?

I’ve set up mail retrieval and lost mail retrieval, but can’t set up collecting emails from subdomains

What are the steps to reproduce the issue?

Hello, I can’t solve the question.
The task is to collect all lost emails to one mailbox.
For example, there is a domain ( example.com ) I need that physically on the server not to create subdomains, but that at the same time, if a letter comes to the address [email protected] that it was redirected to the desired e-mail address.
how to set up cloudflare records correctly? what to pay attention to?

English is not my native language, please write in literary language so that I can understand you correctly, thank you.