Of course you can use the modules on any other brand of laptop. It's not going to look pretty doing it, but I've routinely used the USB-C to USB-A, as well as the mini SSD, on a MacBook Pro.

Colleagues borrow them all the time when they need a SD card or MicroSD card reader. Is it as pretty as a dedicated reader for those cards? No, but it does the job.

Saying they're proprietary is misleading a bit. The form factor makes it awkward to use elsewhere but they work just fine anywhere you plug them into.