As you know, first-time tax filers in Georgia get a check instead of direct deposit (this is presumably to cut down on tax fraud). See https://georgia.gov/popular-topic/tax-refunds
In large scale printing operations, checks are often queued up to run in batches, which will add a delay (big or small depends on the operation). And, of course, mailing the check through the Post Office, will add a several day delay.
Please look at the link above for a way to check the status of your Georgia refund.
