My email is listed as recovery email for an unknown Google account

My email is listed as recovery email for an unknown Google account

I just received a "New sign-in" notification email from Google, saying

Hi UNKNOWN_PERSON,

Your Google Account UNKNOWN_ACCOUNT@gmail.com was just used to sign in from SOME_BROWSER on SOME_OS

Where UNKNOWN_PERSON and UNKNOWN_ACCOUNT are total strangers to me. They have no resemblance to mine and even belong to a different culture.

The email also explains:

You received this message because MY_EMAIL_ADDR is listed as the recovery email for UNKNOWN_ACCOUNT@gmail.com. If UNKNOWN_ACCOUNT@gmail.com is not your Google Account, click here to disconnect from that account and stop receiving emails.

Where MY_EMAIL_ADDR is my email address, to which the message was sent.

While clicking the disconnect link seems the obvious action, I am not sure that this is enough. It seems unlikely that my address was added as recovery email by mistake, so I am wondering if UNKNOWN_PERSON or someone else had any malicious intent

The disconnect link doesn't look like a phishing one; it is in this form:

https://accounts.google.com/AccountDisavow?adt=SOME_HASH