Theoretically what you’re looking for is something that supports HBR3 data rates for DisplayPort, such as Apple’s Thunderbolt 3 cable, but obviously there should be cheaper cables out there that do the same trick. Seems really hard to google for HBR3 without finding USB-C to DisplayPort adapters though, so I can’t point at particular cables. DisplayPort 1.4 and DSC would be other keywords to look out for, although perhaps that doesn’t refer to data transfer speeds. You can pretty much assume that Thunderbolt (3 or 4) cables are going to be fine, although they’ll be limited to 0.8m length due to signaling requirements.
I’m also not the expert to listen to - that would be Benson Leung who sometimes answers questions on USB-C subreddits, perhaps you can find out something there. One thing to keep in mind though is that DP Alt Mode is unidirectional, meaning it has theoretically twice the bandwidth compared to USB data transfer modes, and also it’s a different signaling protocol. And USB 3.2 Gen 1 is only using half the high-speed data lanes, the other half goes to DP Alt Mode if shared on the same cable. If expanding to full DP Alt Mode on all 4 high-speed data lanes and not sharing with data, you can get much higher throughput. DSC doubles the effective bandwidth for video signals from 4K/60Hz to, er, 4K/120Hz or 4K/144Hz or so, if using all lanes. (That’s also why you can’t have to choose between USB 2.0 speeds + 4K/144Hz, or USB 3.0 speeds + 4K/60Hz. USB 3.0 being USB 3.x Gen 1. You can’t have USB 3.2 Gen 2 + DP Alt Mode on the same cable.)
So the limitations of USB 3.2 Gen 1 data transfer speeds don’t necessarily apply, don’t ask me about the exact bandwidth numbers though. There are some AnandTech articles from 2012 or so that helped me understand more about it before I forgot it again.
If it supports 8K @ 60Hz, I’m going to say you’ll be fine. I’d suggest to get a second opinion though! Or wait for the neon red cable that Eve was going to offer to Spectrum customers.