I think the most mechanical one I know is Ludology.
I love boardgame in bed, but it is very light and not exactly what you are looking for.
I know the boargame design lab podcast has quite a few good episode that covers specific mechanics.
boardgame.business has nice things on the industry (so everything else that needs to happend to make games).
Mark Rosewater has a good podcast that sometime covers mechanics
Board Game University old episode were good.
Ah thanks, I'll have a look at those, minus the business ones, I'm just a hobbyist I dont have any interest in that side of things. Looks like there are a few interesting deep dives around though
We are an inclusive Mastodon community for everything tabletop (and more).