Pair Mismatched Logitech Unifying Receivers on Windows and MacOS

In response to the comments I get on my video about pairing mismatched non-unifying receivers (dongles) to mouse, keyboard or combo, I have put together a video for how to pair mismatched unifying receivers compatible unifying devices such as mice, keyboards, and combos. The process is shown for Windows 11 (with the software app versions going back to Win7), and MacOS 10.14 (with the software app versions going back to 10.8).
Feel free to skip to the chapter for the OS of your choice. Again, please like & subscribe. As always, I will counter-subscribe watching content and leaving likes so that we all succeed as good neighbors.