"Tracked Pose Driver" / Orig. Position / Re-Center

Hi folks,

I'm currently trying to update my "DYI-FPS-Controller"-scripts but can't seem to figure out how to leverage the new functions / VR-features...

So I've tried to add the "Tracked Pose Driver"-component to my head / camera-object for HMD-movement-tracking-purposes. While this does work (HMD-tracking), the Camera-Object would be re-positioned on start / launch while I'm trying to "attach" it to the Character-Capsule's "start"-position.

It did work for a couple times (like, out of the blue) but would start to act-up after a couple runs...

The only "solution" to this problem seems to be a manual "re-center"-call.
I'm currently using:
UnityEngine.XR.InputTracking.Recenter

As I understand, this method is obsolete and shouldn't be used going forward...
So I guess this would be my 2nd question: What's the "easiest" / best way to trigger a HMD-re-center / orientation-call?

Thanks a ton in advance & best regards