In order to be gate checked it must be an FAA approved seat, and if you're going to bring it through security and to the gate, you may as well use it on the flight. Not all seats gate checked will be valet checked. They may well be through checked and you would need to pick it up at baggage claim.
There is no reason the seat would need to be FAA approved if they aren't using it onboard, we have gate checked booster seats many times and they definitely can not be used onboard.
In addition you absolutely can gate check a car seat and or a stroller to be delivered to the gate at landing as opposed to baggage claim.
This is a Delta requirement. If you read the actual Delta regs, they state that it must be FAA approved in order to be brought down the jetway.
It is entirely up to the gate agent whether it will be valet checked or through checked. I was an a MCO-MSP flight two weeks ago that had gate checked items sent to the baggage carousel rather than valet checked to the gateway.
Here is the actual Delta page about car seats and strollers. https://www.delta.com/us/en/baggage/special-items/children-infant-items
To answer the OP's question: You would need to wait in line to have it checked. Depending on where you're flying from it might be the same line.
This is a Delta requirement. If you read the actual Delta regs, they state that it must be FAA approved in order to be brought down the jetway.
It is entirely up to the gate agent whether it will be valet checked or through checked. I was an a MCO-MSP flight two weeks ago that had gate checked items sent to the baggage carousel rather than valet checked to the gateway.
Here is the actual Delta page about car seats and strollers. https://www.delta.com/us/en/baggage/special-items/children-infant-items
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