2 Player box sets

So I’m thinking of getting into Warhammer. I’ve been into the universe and some of the video games for a while now but recently I’ve been thinking about getting into tabletop. I’ve seen two army box sets at my local gaming store before, and I was thinking that might be a good way to get started provided the armies are both ones I like. However, I can’t find any information on these sets for either 40k or AoS. It’s not even that they aren’t sold online, it’s like they don’t even exist. There is no info on them on the official website (or seemingly any other), no lists of releases on wiki’s, nothing.

Also for context, I am currently studying abroad so I can’t visit my local game store for a few more months. I was hoping to do some window shopping so that I have an idea of what to look for when I get back if i decided to start an army or two.

So I guess my question is why are these sets very existence censored by the inquisition? And more importantly, does anyone know of somewhere where I could find this information?