The easy thing about digital cables is that they either work or they don’t - if a cable is not capable of transmitting the signal adequately, you likely won’t get a picture at all. If you’re right on the cusp of it working and not working, you may get sparkling, or the whole screen flashing white, or going black for a few seconds, then coming back up; but what you definitely won’t get is a subtle problem that’s hard to spot.
The downside of digital cables is that if you’re close to the point of it not working, it’s possible that it will work for one specific combination of source and sink devices, but not others. (So the same cable can work for source A and television X, but not for source B with TV X, or for source A and TV Y). So, if you’re not going to use independently certified cables, I would test with the devices you actually intend to use.
If the cable is certified then it’s guaranteed to work with any two devices that conform to the HDMI spec. If not, then a decent quality cable will probably work okay; but to my mind it’s not worth the risk.
(Having said that, Amazon Basics cables do have quite a good reputation).