Got this from Delta today. Seems they only gave me Gold for my Jetblue Mosaic and I gotta do a lot more than "Fly 2 Qualifying Round Trips or 4 One Ways" to keep it..
"You Are Now Enrolled In The SkyMiles Medallion Status Match Challenge.
Thank you for enrolling in the SkyMiles Medallion® Status Match Challenge.
Your elite Status Match request has been approved, and we would like to welcome you to the SkyMiles Medallion Program. Medallion Status offers a host of benefits, including Priority Boarding, Unlimited Complimentary Upgrades, waived baggage fees, Preferred Seats and more.
Your Gold Medallion Status is valid for the next 3 months and will print on your future boarding passes. Plus, your digital Medallion card will be available in the Fly Delta app for iPhone® and Android™.
To keep your Medallion Status through January 31, 2022, you will need to complete both of the following requirements:
Earn 12,500 Medallion Qualification Miles (MQMs)
OR
Fly 15 Medallion Qualification Segments (MQSs) during the 3 month complimentary period
AND
Earn $1,500 Medallion Qualification Dollars (MQDs) during the 3 month complimentary period (U.S.-based Members only)
OR
Qualify for the MQD Waiver* (U.S.-based Members only)
Thank you again for participating in the Status Match Challenge and for your interest in the Medallion Program. "