How do I remove a device that I no longer own from Find My?

I sold my MacBook Pro a while ago and even if I did signed out from my Apple account, I realize now that it still appears in Find My and I see the location of the new owner. When I select that device in my Find My, I have the option to erase it or mark as lost. I do not see any option to remove it from my account though. If I right click on the device in the list as some suggest, I also do not see the Remove option The Apple support page was not helpful. How can I remove it? **UPDATE** I noticed that when the device is offline, I do have the option to remove it. If I do so, I confirm with my Apple password and the device is removed but appears again after some seconds in the device lists.