I’m mostly talking about Micro USB cables; they were pretty notorious for gradually becoming loose.
They definitely wouldn’t be a great fix and could potentially make things worse but for electronics you don’t plan on unplugging again or mind dying shortly after I could see them coming in handy if you don’t want to solder on a new connector or rely on strategically placing a device where the cable makes proper contact. I could see them being a weird item you stumble across on Ali Express.
Once I’m at that point I wouldn’t really be looking for that kind of precision. Just something roughly in that range.
Every so often I stumble across cables that are a tad thicker than others (usually they came with cheap electronics) so I know they are floating around out there. They’re just not labelled as being this way.