Try installing the latest Office 365 onto it and come back to me after discussing it with your iMac. It will need Ventura or later, just so you know.Do Apple machines stop working after a certain number of years when this “kill switch” is flipped? I wasn’t aware of this. My 2011 iMac apparently isn’t either and I’m not telling it.
It can be done and you know exactly what it takes to do that, so why post that nonsense above?