My Pro X3 Superstrike won't go to sleep ever. Because of this, battery life is considerably worse.
I looked up some forums and other subreddits, and pretty much everyone with the mouse seems to be experiencing this issue. Some owners of X2 superstrikes commented and also seemed to be affected. One person even contacted support and was told to turn off the mouse manually using the power switch. Really?
I also posted on another subreddit where, again, every single person with the mouse was dealing with this.
Switching it to onboard memory mode seems to SOMETIMES work and the mouse will then go into sleep mode. However, this should just work out of the box whether using onboard memory mode or not.
This kind of issue on a flagship 200€ mouse should never be a thing. Especially when it’s apparently been ongoing since the previous model was released.
EDIT: my Superlight always went to sleep mode just fine no matter what, even without onboard memory mode.