Yea they run around barefoot.

Less noise than wearing boots

For actual plays, I can highly recommend Tabletop Gold.

They're playing through Abomination Vaults. Crew is only 4 ppl, 3 players, 1 GM. And episodes are only an hour long, so the whole show is super digestible.

That's not even mentioning their impeccable sound quality. And I think their background music is original work by the GM? But I might be misremembering that bit.

As for rules or strategy stuff, it's not exactly a podcast, but the knights of last call have a "combat and tactics" playlist that's really great at conveying the importance of action economy.

You fool, don't you know that aluminium cancels out any form of magic?

Your potions will go innert as soon as they touch the can!

Did you master not teach you about the arcane properties of the metals??

Stupid apprentices, always thinking they made a brand new invention. There's a reason we use glass vials, got it?