What’s with these ‘Medicare Confirmation’ calls?

I’ve received half a dozen of these calls asking me to ‘confirm’ some ‘update’ to my Medicare. I haven’t needed to update anything in my Medicare account.

If I ask who needs this confirmation, they say it’s the Medicare Update Agency or similar dubious sounding organization. Also, my impression upon listening carefully to these calls, is that they are bots carefully crafted to sound like a real human in an office.

Anyone else getting these?