I had Logitech M705 for 12 years, I changed the battery roughly every 2 years. I only replaced the mouse, because the rubber fell off.

I always avoided wireless, but it is not as unreliable as before, unless there an interference like from Wi-Fi or other wireless devices.

I have Logitech M330 Silent Plus now, but sometimes it gets clumsy, because of an interference, I have to shake it down a bit.

What makes me wonder though, how come people did believe it in the first place?

It usually states that is an estimate based on an average use, so in ideal conditions.

Like a wireless mouse with 3 years battery life lasts for about 18 months IRL, so 50%.

It started good, but then people realized that it is not reddit, so they moved back, failing to embrace the change.

I do not blame them, I miss the content and my 15k account, but I have removed it, so there is no going back for me.