Oh yeah for sure.
I know that whenever I did this as a lad it was for immmmmerrrrrsion. Getting all the little details just so. Making the players feel like they’re there.
Today there’s also a defensive quality to it. I can feel that impulse in my head somewhere! Like,I just know some Aquitaine nerd is going to well actually me at the table like we’re debating whether lightsaber crystals actually matter or not.