And truly lightweight cables, for slow overnight charging (or for charging of small batteries, e.g. smartwatch scale) have all but disappeared with the shift from A/micro-B to C/C. It's awesome that we have near-universal connector for that wide a range of use cases, but that requires some learning about cable classes beyond the old "does the connector fit?" and that learning process is not over yet. And by learning I don't just mean us memorizing classes, but also an effective narrowing of classes, e.g. no more almost but not quite TB4 compliant ones.
Though poor cables do drop the voltage a bit I feel that the proper approach would be to to just use a weak charger. They are "all" USB-A and there are no lack of USB-A -> C cables.