We currently play on Sundays mornings at 10 AM (when the store opens). Most of the time the rest of the store is empty, though sometimes they have Magic events. Which sometimes means we get free pizza and sometimes means we get bumped for space.
There's at least one group who plays 5e there sometimes, though they tend to come in a little later. And as the day goes son there are more and more wargamers playing as well.
For the record, we normally DCC, though we just picked up a couple of TTRPG newbies including another 8yo, so it's gonna be HeroQuest for a couple of weekends to make the basic concepts as easy to grasp as possible.