How to cope with MagSafe "withdrawal"?
How to cope with MagSafe “withdrawal”?

One should take pause when consider doing anything that Apple doesn't. @Allen's comment points out that the (relatively small) stub of an aftermarket magnetic connector sticking out is an opportunity to put stress on the internal connector when the laptop is stored or bouncing around in a backpack.
For users like me though, I have to weigh that against the benefits of having a safe disconnection if the cable is tripped on or otherwise pulled.
A medium ground might be to consider using an aftermarket magnetic connector but taking care to either remove it and stow it somewhere or just slide the laptop into the backpack with the USB side facing up.
But that also means taking care if putting the laptop into a case or sleeve.
The other option is to (try to remember to) take it out every tine. Some adapters have little plastic tools to pull it straight out and a case to stow it, and some vendors sell two tips for every one cable, allowing you to stow one at home and the other elsewhere, or to lose one forever.
It seems that there is no perfect workaround to avoid experiencing MagSafe “withdrawal”.