Also, this has been the case (or at least planned) for a while.

Pascal (the GTX 1000 series) and Ampere (the RTX 3000 series) used the exact same architecture for datacenter/gaming. The big gaming dies were dual use and datacenter-optimized. This habit goes all the way back to ~2008, but Ampere and the A100 are really where datacenter came first.

AMD announced a plan to unify their datacenter/gaming architecture awhile ago.

Intel wanted to do this, but had some roadmap trouble.