[Sylos]

Not reliably, as only power users will ever even consider opting into telemetry (or changing pretty much any setting for that matter). And power users generally have a much clearer layout of the tabs in their mind and will always go straight up and click, rather than ruffling through the tabs for a second. Or something like that. You get the idea, behavior here is simply different for power users and those are who you'll reach with opt-in telemetry.

Also has to be asked, though, what's the point in making this opt-in? Is it in any way sensitive information whether you click after hovering a tab? I also prefer being more cautious than is necessary, because sometimes there just is some privacy implication you didn't think of, but with this the risk seems incredibly low and they do have a clearly defined use for the telemetry.