rcmmnds
uni 8K USB C to DisplayPort Cable 6FT, 8K@60Hz 4K@240Hz Thunderbolt 4/3 to DP 1.4 Cable Non-bidirectional Support 32.4 Gbps, FreeSync, G-Sync Compatible with iPhone 15 Pro, MacBook Pro/Air, iPad, iMac

uni 8K USB C to DisplayPort Cable 6FT, 8K@60Hz 4K@240Hz Thunderbolt 4/3 to DP 1.4 Cable Non-bidirectional Support 32.4 Gbps, FreeSync, G-Sync Compatible with iPhone 15 Pro, MacBook Pro/Air, iPad, iMac

comments:

This and similar devices from the same brand have worked for me most of the time, this one for me does drive my 240Hz monitor correctly. https://a.co/d/26KVNYg

Apple laptops do have some problems waking up properly with external monitors. It’s not the cable or the monitor but the computer not handling the situation properly.

The only laptops that do are ones with docking ports.