Another statement from a well known openSUSE Blogger: https://cubiclenate.com/2020/01/13/solaar-application-for-logitech-unifying-receivers-and-devices-on-opensuse/ His verdict: Having Solaar in the system try is quite handy. Though, the reality is, I don't need it all the time in fact, it isn't actively running very often but having it to manage your devices is very handy. It's nice to know that you can manage multiple Unifying receivers with this application. This is easy to use and has a great, well laid out and straight forward interface. I am glad I was recommended to try this application out. It has now been placed high on my list of tools to keep handy.