USB4 Version 2.0 is in the works and when launched, it will allow for double the speeds of the current USB4 specification with existing USB-C cables.
USB-C on MacRumors
Speedier USB 4 Version 2.0 is coming to double bandwidth on your Mac
USB Promoter Group announces USB 4 Version 2 protocol, outlines expected features - O'Grady's PowerPage
Satechi USB4 Multiport Adapter - 100W USB-C PD Charging, Gigabit Ethernet, USB-C Data, up to 8K HDMI – Compatible with 2022 MacBook Pro M2, 2021 MacBook Pro M1 Pro & Max
USB 4 device to test/confirm transfer speeds? : r/UsbCHardware
USB-C on MacRumors
Black 4-Port High Speed USB 2.0 Hub : Electronics
MacRumors: Apple News and Rumors - Page 293
USB4 Version 2.0 to Offer 80Gb/s Transfer Speeds, Page 9
Mac: M3 - *Hardware accelerated RT (Part 1) - Blender and CG Discussions - Blender Artists Community
USB 80Gbps: What's New in USB4 Version 2?
Any thoughts about Thunderbolt 4?
USB4 Version 2.0 announced: 80 Gbps data transfer using some existing USB-C cables: Digital Photography Review