(Not so much for the original poster, who answered this question, but for others.) Which device do you have, and how advanced is your usage? If the device does what you want without the Logitech software, then don’t install it.
I’m personally a fan of simplicity with my mouse. I’ve tried a bunch, and really like the Logitech M557, for the way it feels in my hand. (Long-term chronic tendonitis sufferer here.)
It has more buttons/functions than I want to use, myself. Regular click, right/Control-click, and the scroll wheel all work without the Logitech software. So I’ve never installed it.
There’s another button (with an icon that looks like the Windows logo), and the scroll wheel can also be pushed side-to-side for side scrolling (I guess). I don’t use either of those, they would cramp my fingers if I used them regularly. Might work without the Logitech software, might not.
For more advanced features, there are other tools. StreamDeck if you want special buttons, Keyboard Maestro if fn- or combo-keys are good enough, and so on. Maybe one of those will work better for you than the Logitech software. If you’re looking to avoid it, for any reason, or no reason at all.