PCI (x1) below PCI x16 slot wasted?

[XTF7]

Some boards have x1 slots below the x16 slot.

Most GPUs are 2.5+ slots nowadays. Aren't these x1 slots mostly wasted?

[Jiaszzz_ROG]

Hello @XTF7 

Thank you for reaching out to us.
Modems, network adapters, sound cards, SATA expansion cards, video capture cards, TV tuner cards, and various other devices utilize the PCIe x1 interface.
You may select a motherboard with the appropriate specifications based on your usage requirements and specific needs.

Thank you.

[XTF7]

If the GPU is 2.5 slots wide the two slots directly below it aren't usable are they?