I own three Logitech mice and used one to click on this story, but I can say with absolute and complete certainty that if Logitech charged anything for its software, it would be too much, and I'd use SteerMouse instead.
Their drivers are quite literally the worst piece of software I use on a regular basis at home. The Logitech driver on my desktop fails constantly when switching users--every time I sit down at the computer after my significant other was using it, I need to manually restart the driver just so I can scroll.
And it's been that way for years through dozens of software updates.
The worst part? This is an improvement--it was actually more crash-prone before, and at least now the Logi app will offer to restart the driver if it's not responding, although you still need to open it manually to get it to do that.
Before, I just kept an Activity Monitor window open and filtered for "Logi" so I could force quit the driver constantly, and before that even force quitting the background process wouldn't fix it and I actually needed to reboot. Go back a bit farther, and I had actually given up using a Logitech mouse entirely for a while because the software caused so many random glitches it was literally unusable.
But yeah, tell me about how I should pay a subscription fee for a mouse driver that doesn't reliably drive a mouse, and if the past 15 years of track record are any indication, never will.
Logitech hardware has bee quite good (apart from the lack of USBC dongles) for a long time, but their software has always sucked.