Help me find a podcast about a guy looking for his friend that disappeared through a magic gate?

Im trying to remember a podcast I was listening to last year and didn't save (of course😑)

What I think I remember is that it was about this guy who found that walking across this bridge or gate at the dog park let him go onto this alternate reality where there is a neighborhood of forgotten people living in all sorts of houses. There's something maybe hunting him? Or there's dark secrets in the town that maybe it's not as nice as it seems? I think there was a scene that took place in the town hall records room basement that was kind of like the back rooms. I think he was somehow sending messages to his friend that was on the outside. He was supposed to rescue his brother? I remember I think I finished the season or two that was out but it ended on a cliff hanger so I wanted to know if it kept going.

Bonus round: A different Podcast where a bunch of youngish people are stuck in a house they can't leave and they can just go deeper and deeper into the house and it gets weirder and weirder. Multiple floors. I think at one point the are in a hotel and also maybe a TV studio with a kids show but evil. They are getting chased by something, monsters maybe? I think I finished this? But I can't remember how it ended so I just wanted to make sure. I was pretty invested.

Thanks!