Magnetic connectors work well in this case, and you won’t need that tape. But if you move your keyboard around a lot they might be a slightly worse solution than yours ;-)
My work keyboard has a cheap magnetic cable so I can easily plug and unplug it (I’m not leaving a custom mech unsupervised a work!). It indeed takes most of these strain.
Magnetic connectors work well in this case, and you won’t need that tape. But if you move your keyboard around a lot they might be a slightly worse solution than yours ;-)
My work keyboard has a cheap magnetic cable so I can easily plug and unplug it (I’m not leaving a custom mech unsupervised a work!). It indeed takes most of these strain.