If you’re wondering whether it’s worth waiting for the Xbox release rather than buying a faster PC, I’d say yes if you’re happy with the choice of console controllers and don’t play PC exclusive games.
Windows on PC is actually behind the gaming capabilities of the OS running on the Xbox Series S and X. One example is DirectStorage which powers instant resume is hardware accelerated on the Xbox Series and will be implemented in Windows 10 in a different way. A RTX 3070 FE uses DDR5 memory whereas the Xbox Series X uses DDR6 in its SOC. The Series X is best value for money but as to how well the DX12 version of the game will be optimised for the console - we’ll have to wait and see.