Following the Steam trackers and the context given by Dring and Piscatella, I believe they are at around 8M sold through across PS5 and PC. I
f they were to make a sales milestone of 5M it would have been last week but it would be extremely bad optics considering the layoffs ("Here, we make mad bank from our GaaS success. Btw we fire 900 of our employees").
I expect an announcement of sales next week; that would give it a good two weeks gap between the layoffs.
Taken the average of the first 3 trackers, puts it at ~5.3M sales on Steam alone. Normally I'd give weightage on the different trackers but I don't know which one is closer to the true number. Obviously SteamSpy's number is ridiculous but if I wanted to be fair I'd still include it but with a very low weight (though it would still pull that 5.3 number higher).