Solaar is a Linux manager for many Logitech keyboards, mice, and other devices that connect wirelessly to a Unifying, Bolt, Lightspeed or Nano receiver as well as many Logitech devices that connect via a USB cable or Bluetooth. Solaar is not a device driver and responds only to special messages from devices that are otherwise ignored by the Linux input system.
That's not the driver but some bundled configuration & update bloatware.
Back in my days, you had to overwrite some .exe with a "0" to disable Nvidia from spying on you. The overwrite, because they would just download it again if you deleted the .exe.
It can't detect some of the fancier buttons and gestures but it can often pickup buttons 4 and 5 for remapping, and it does chording and long press options to give you multiple functions without any AI bullshit.
My installation process for a new mouse is as follows:
1 - Attempt to plug it in.
2 - Flip the USB connector.
3 - Plug it in.
4 - Use the mouse.
Is there anything at all to be gained from installing the software that comes with the mouse? Even with extra side buttons, I've never had anything not work out of the box.
The driver itself is probably a few megabytes only. The rest is just bullshit in the name of rgb control and preset/dpi control. You seem to be using a Logitech device, you can enable the onboard memory of your mouse, then uninstall this thing and use Logitech's Onboard Memory Manager app instead.