To my understanding on a consumer market there isn't much that can utilize that much bandwidth. Current consumer GPUs tap out at 4.0 speeds, but use 5.0 (probably due to "more number more better" marketing). To benefit from 5.0 for NVMe it has to be very specific access patterns.
It's only sad on Intel side because they want strong market segmentation and got away with it because AMD wasn't a competitor for years.
NICs that can utilize x8 from PCIe 5.0 or even 4.0 probably don't usually go into consumer or even prosumer hardware. PCIe 3.0 x4 is enough for a single 10G NIC. One PCIe 4.0 x8 can handle 4 of those, double that on PCIe 5.0.
There is currently no GPU on a market with PCIe interface that can utilize PCIe 5.0 x8 fully.
Storage is probably the only area where what you get from PCIe is not enough. However, by the time such bandwidth makes sense - the price of CPU and motherboard is a drop in a bucket, and you are probably limited by more than just the number of PCIe lines.