In case it’s not known, Logitech does offer an offline version of Options+ meant for air gapped and more secured systems:
https://support.logi.com/hc/change_language/en-in?return_to=...
Seems nuts that you would go through the trouble of air gapping a system then use a Bluetooth keyboard.
I maintain a homebrew tap for the offline Options+: https://github.com/gohanlon/homebrew-tap
The tap includes a GH action to track upstream releases (as long as I notice the PR!). Also, the offline version only compensates for some of the issues with Options+.
It's a sad state of affairs that a mouse settings program isn't 'offline' by default. Except maybe an update check it has zero needs to be online.
Logitech's offline installer is 1.2GB. This application's installer is 15.3MB.