Z690 PCIe slot question

It's a slot of x16 size but electrically x4 This

For example, a PCIe x8 card could plug into a PCIe x16 slot However, PCIe bus slots are not backward-compatible with connection interfaces for older bus

pcle x16 slot Ultra Durable PCIe Slot • PCIe® Slot ‧ Lower temperature, smaller size, better thermal characteristics PCIe * Hardware Design 1 PCIe Slot

pcle x1 slot A PCIe or PCI express slot is the point of connection between your PC's “peripheral components” and the motherboard The term “PCIe card” and “