Their switches are just crap. They use Omron switches mostly due to their low cost, even on supposedly "high-end" mice. People routinely replace them with better alternatives (e.g. TTC Gold or Kailh, but there are lots of them) and get years of heavy usage after that without any problems. The switches can be obtained on aliexpress, you do need a soldering iron though.
It’s not just a soldering iron needed. I replaced the switches on my 17-year-old Logitech MX Revolution and on a newer Performance MX and the old switches are completely impossible to remove from the PCB without snipping away at them and a lot of (careful) force. However I can say that the result was worth it, no more phantom double-clicks. Mouse itself was fine.
Maybe for some of the newer mice it’s an easier ordeal, though.
I mean, if a mouse is working for 10+ years for 8 hours a day (M705) or for 14 years for 2-3 hours a day (G700) without any major problems, I wouldn't call that switches crap.
