Now, bit of an interesting side-topic, but in the past I've mentionned an APU called Van Gogh. Not much was known about it aside from the fact that it's Zen 2 + RDNA2.
Well, as of not-too-long-ago we did find out more information.
1. The CU count is a multiple of 8.
2. Van Gogh and Mero are identical to one another. Or perhaps it would be more specific to say there's strong evidence to believe that one is a derivative off the other.
Neither seem to be any sort of console APU... is something that is publically known but as for how we know it, that information isn't publically available anymore. No it is not part of that Github leak the other day, but uh, rather a much older one that AMD cleaned up as a direct effect of the bad one.
That's all the confirmed info there is. Past that is not-so-confirmed-stuff like what the actual CU count is and customers, but uh, you could probably guess who the customers are rumoured to be if you realised the above specs make Van Gogh some kind of premium APU.
The reason why I won't be talking about said rumour is that is doesn't sound like AMD. Not in the slightest. I won't say that the rumours involve a complete waste of die space, but the iGPU side is too large to make sense given it's AMD we're talking about. It's plausible for a semi-custom project that has a derivative made off of it after other customers show interest in it, but still a bit suspect.
Also we know for a fact that this is the last APU that will have any different to 10-12 CUs per shader array. Which is nice to know too.
EDIT: Oh, one last thing. Bit of speculation from me. If Van Gogh actually is as above and aimed at laptops, I suspect it will be the reasy why there are -HS skus but no -US skus. It would make sense as a 28W part, you know, like how Intel's old 28W chips had a clear focus on iGPU while the CPU side was mostly the same? Take Coffee Lake-U for example.
It's worth noting -S doesn't necesssrily mean low power. It actually refers to the fact that AMD work closely in the design of any laptops with a -S chip.
That... probably gives away one of the customers in the aforementionned rumour too.