Your search query is garbage incidentally. Unifying is a "feature" not the name of any particular software. You should have searched for the model of your hardware
...Nnnnno, there is literally a tool from Logitech called "Logitech Unifying Software," which is the applet you need to reassign a Logitech Unifying receiver to a different device.
It's describing the FEATURE! There are no downloads listed for a feature for a reason... you don't load the actual software for instance "logitechoptions" "logitech options+" "G hub"
It's describing the FEATURE! There are no downloads listed for a feature for a reason... you don't load the actual software for instance "logitechoptions" "logitech options+" "G hub"
Also your own fucking link says explicitly that you can achieve the feature it describes with Logitech Options Plus!
From your own goddamn link
. You can now personalize the experience of your Unifying devices with the powerful Logi Options+ App that lets you customize your supported Logitech devices so you can get more done.
note how searching for the words logitech unifying don't go to any current release of any software you would actually want to install whereas searching for "logitech" "name of hardware" actually take you to the current software for your actual hardware? Shocking I know.