Or it's something about your own connection. Maybe an ad blocker? For me, the redirect works:
$ curl -IL logitech.com/mx 2>/dev/null | grep http
Location: https://logitech.com:443/mx
location: https://www.logitech.com:443/mx
location: https://www.logitech.com/en-ca/mx.html
(I have the Mechanical Mini keyboard and the 3S Anywhere mouse; I like the MX product line.)I got it specifically because they had a mini rant about the weight of switches that other vertical mice use, and while I couldn't tell if that was a real problem, that's the kind of mentality I used to ascribe to Logitech.
The MX4 is clearly marketing logic. The haptic feature adds nothing of note, and 100% feels like their marketing people got to preempt the core goal of making an ergonomic mouse so they could have a headline.
Location: https://logitech.com:443/mx
location: https://www.logitech.com:443/mx
location: https://www.logitech.com/en-us/mx.html
location: https://www.logitech.com/discover/c/master-series
location: https://www.logitech.com/en-us/discover/c/master-series.html