I hear you dude. That 10+ year reputation is what drove me to buy their stuff, along with all the glowing user recommendations.
I heard that you can make the rubber last longer on mice by periodically cleaning them to slow their chance of breaking down, but I never experienced the rubber actually separating. That happened to my spouse’s Razer mouse (heh, that rhymes).
But I suppose that, apart from this whole post’s focus on “as a service”, that possibly Logi products have begun to go downhill quite recently. I wouldn’t know, all of mine have been great. Sucks for your MX mouse, but I feel you on the uncertainty of buying future Logi mice.