PCIe5.0 motherboard support; any vga cards use it?

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I've noticed that some motherboards offer PCIe5.0 support. Do any vga cards currently make use of it, or is this something for the future? If it is for the future, then will it matter much?
I'm considering buying a B660 motherboard (MSI mag mortar ddr4, which has PCIe4.0, or the Asus TUF B660-Plus ddr4, which has PCIe5.0). I don't know if the difference is significant, and would like to buy the better value option.
Thanks for help and clarifications.

 

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It will be many years before pcie gen 5.0 makes a difference with Gpus so I wouldn't worry to much about it right now.

I see, so PCIe5.0 support should not be counted as a significant factor when considering which motherboard to buy. If GPUs will not take advantage for ages, then little point in weighting the feature much when comparing motherboards.

 

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What @Joxeon says is correct.

Techpowerup's W1zzard likes to run PCIe scaling tests each GPU generation and the last one testing the 3080 found almost no difference again:

NVIDIA GeForce RTX 3080 PCI-Express Scaling

NVIDIA Ampere finally brings PCI-Express 4.0 support to the high-end graphics market. The new interface promises twice the bandwidth of PCI-Express 3.0. We've setup an AMD Ryzen 3900XT system to test how various PCIe generations and lane widths affect gaming performance.

www.techpowerup.com

Even at 4K PCIe 3.0 vs PCIe 4.0 was about 1%. Even dropping to PCIe 2.0 only lost 4%.

Thanks for the link. Very helpful. Yes, I see what you mean. The difference is really not much at all!