In my experience, mice don’t really break since optical tracking replaced rollerballs.
Sadly they do, sometimes they stop being able to click, or do double clicks or other weirdness. I have gone through a few mice over the years. Oddly, the newer a mouse the more likely this seems to be the case. Don’t throw away old but working peripherals.
I have been trying to navigate the current mouse market, I am hoping that these new fancy “good for 20 million clicks” switches that have migrated from mechanical keyboards over to mice mean that my next mouse will last for 20 years or so. Now to just find a way to differentiate between the 500,000 mice that are all at the €45 price point with the same form factor and specs.