Here ia a detailed comparison between Thunderbolt 3 and USB-C. They have been compared & the difference explained so that you can make the right decision.
Do you know the difference between Thunderbolt 3, USB-C 3.1 Gen 2, and USB-C 3.1 Gen 1?
Thunderbolt 3 vs USB C: Look the Same But Differ Greatly - MiniTool
USB-C - Wikipedia
USB-C and Thunderbolt 3: Here's everything you need to know - CNET
Access up to 40Gbps of bandwidth with our Thunderbolt 4 Cable. Get ultra-fast data transfer speeds, high-def video, and up to 100W of Power Deliveryat the same time, with one cable. Our certified Thunderbolt 4 cable is fully compatible with Thunderbolt 3, USB4, USB 3.2, and USB2.0, giving you top-tier connectivity in a full-featured, 2M / 6.6-foot cable. A passive Thunderbolt 4 Cable is also available in 1M / 3.3-foot length.
Belkin 2m Thunderbolt 4 Active Cable
Compared: USB 3, USB 4, Thunderbolt 3, Thunderbolt 4, USB-C - what you need to know
Thunderbolt 3 vs USB C: Understanding the Difference and What it Means
What Is Thunderbolt 4, and Why Should Your Next PC Have It?
USB-A vs USB-B vs USB-C: Different Types of USB Cables Explained – PRISM+