Ive lived in Maryland for 26 years.
Blue crabs arent even good. Nobody I know cares about them. I only see cacs talking about this.
Old bay seasoning is good. obviously doesnt go in beer.
It is good on wings and especially on crabs/crab legs though.
In some areas you do see the flag a lot. But its mainly because its very unique compared to most state flags.
Maryland is not part of the south and the only time Ive ever heard somebody say this is down in st Marys county, which is at the bottom of the map and full of confederate flags.
Sheetz is better than Wawa, but I dont care either way. Its gas station food.
DC used to be hood before gentrification happened and a lot of people flooded Montgomery and Prince Georges County in Maryland.
Now Southeast DC has parts filled with cacs.
The Navy Yard is unrecognizable compared to recent years. I remember cacs used to be scared as shyt taking the Green Line on Metro to get to the Nationals games. Fathers standing in front of their kids with their hands in their pockets pretending to have a gun or knife.

Virginia used to be a larger version of Mississippi before federal jobs and growth came to Northern Virginia and changed the state. They are Democratic now and incomes and cost of living is rising.
So for a long time Maryland did have a very different identity than its next door neighbors.
Thats basically over now though.