Telemetry is disabled by default, but can be found in the System Settings => User Feedback. It's a great way to passively give back to the developers of KDE, and you have REALLY simple controls on how much telemetry you give!
I'm personally the kind who always enables telemetry when asked, but KDE really goes above and beyond to not tell you about it, and have it off by default.
Those options don't seem to be present on OpenSUSE Tumbleweed.
Surprised to hear this seeing as OpenSUSE treats KDE as first class