I don't believe that an ATX motherboard will be an issue (unless you need those other PCIe slots) but your case might be. That's probably the thing to check carefully.
Z690 Hero, BIOS 2305, ME Firmware 16.1.27.2176, 7000X Case, RM1000x PSU, i9 12900K, ASUS TUF OC 3090TI, 2 x 16GB Corsair RAM @ 5200MHz, Windows 11 Pro 22H2, Corsair H150i Elite AIO, 4x Corsair RGB fans, 3x M.2 NVME drives, 2x SATA SSDs, 2x SATA HDs.