I’ve never had issues with Anker cables, but I’ve also never had to deal with their support.

For a DisplayPort cable the best I’ve found is the “Club3D CAC-1060” my GPU/monitor has signal integrity issues that leads to getting black screens as gsync turns on and off. This cable has gotten me the least black screens.

But outside of edge cases like mine a DP and an HDMI cable is a DP/HDMI cable. They’re not doing crazy things like USB C does. They either work or they don’t.