[xxs]

One of the reasons their buttons suck is: effectively running the microswiches out of spec. D2f-01f requires min 5V with micro loads[0]. There would be a tiny spark during switching and over time that would prevent a perfect contact, the higher voltage helps penetrate through. Omron has factories in different countries, e.g. Japan and China - with the China switches "known to be not as good as the original ones". Of course the mice feature the China versions too.

In other words - your best bet is still replacing the switches to ensure longer life... I wonder if Logitech would ever consider stepping the voltage via capacitor charge pump to prevent double clicks.

[0]: https://omronfs.omron.com/en_US/ecb/products/pdf/en-d2f.pdf