Apple ships a short Thunderbolt 4 Pro cable together with its new Studio Display that is often not nearly enough for the ambitious workstation setups that the 5K monitor beckons for. It will, however, now sell you a much longer, 10-foot Thunderbolt 4 Pro cable for the princely sum of US$159.
https://www.notebookcheck.net/Apple-prices-its-longest-Thunderbolt-4-Pro-cable-option-at-a-premium.617357.0.html