This has been my experience, and I've found the price seems to reasonably reflect the quality one can expect.

I've had a few Anker power related devices, those pushing £100+ seem to be of better quality, I recently bought a new GAN charger for ~£80 and it's decent, but I also bought a 20000 mAh power bank on sale for ~£15 and it was one of the recalled models.

Their cables generally seem to be pretty reliable too, but I draw the line at "accessories" and wouldn't buy anything "intelligent" from them, cameras, other IoT devices etc.