In 2024/2025 the availability of TB4 is rather few and far between. Generally only found on higher end or Intel powered laptops. :(
Then there's the case for the actual cabling itself. Thankfully the industry is moving to better markings of cable qualifications/abilities however the market remains flooded with cables that can't pass TB4 bandwidth.
While there will always be use cases for TB 5, the general adoption will be as slow as TB 4 or worse. It has many limitations, such as cable lengths, high cost to license vs return (i.e no will chose a laptop based on whether it has tb5 ot usb 4), and most important, there are very very few supporting devices out there. eGPU market is tiny. monitor market that needs tb5 is the same. I even wonder if in 5 years there will be usb 5
It is logical that using Thunderbolt 5 means paying royalties to Intel and the OEMs, which raises the price of the laptop, which is why the vast majority opt for USB 4.
Thunderbolt 5 has been around for a while now, but there haven't been many products that take full advantage of it yet, and this might not change anytime soon. As a Lenovo executive shares, a wider adoption is still far from now.
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