Cheap HDMI cables are fine for your new 4K TV
https://www.cnet.com/news/cheap-hdmi-cables-are-fine-for-your-new-4k-tv/
The only cable features you need are "18 Gbps," which is how much they need to transmit 4K HDR, and maybe "Certified Premium." This label is found on cables that are guaranteed to work with 4K HDR. A cable might work if it doesn't have this logo, but should almost certainly work if it does. Fortunately, there are plenty of cheap cables with these features.
There is no difference between an HDMI cable that just barely works and one that expensively overbuilt. If the cable is able to transmit 4K HDR from your source to your TV, it works. That's all it needs to do. If it cuts in and out, then it doesn't work (or at best, doesn't work for that application).