you are lucky
As well as “off brands”, my wife and I also have had two or three Apple cable failures and these cables just rested on the counter between use. (My wife likes Apple kit so I’m forced to have an iPhone so I know how get her going when things go awry).The problem is not so much the cable but the poorly designed lightning connector with its exposed contacts. Who ever thought that was a good idea? Look at yours (with a magnifying glass if necessary) and you might see black oxidation (or whatever) shorting out pins or other general funkiness. I have “fixed” some by cleaning but it never lasts. I, for one, will be glad to see the demise of the lightning cable.