If your devices only support up to 4K at 60Hz, a "premium high-speed" HDMI cable (18Gbps, HDMI 2.0) is perfectly fine. Again, just avoid really old or thin cables. Early HDMI cables (HDMI 1.4 or older ...
Our hands-on Alogic Edge 40-inch Ultrawide 5K2K monitor review finds it a great display alternative for Mac users.