Thanks for your reply,
to be more precise, the panics mainly seem to occur with the use of a backup software - GoodSync. We (developer and me) try to evaluate when it exactly happens - it could be the way network drives are addressed. However, the MB system froze today during a disk utility fist aid check, after the internal data volume was ejected without reason.
Regarding the trackpad issue, it persists regardless of having all equipment attached/connected, or everything off, including bluetooth turned off, or even working in safe mode (to be fair, there it seems to happen less often).
As a standard end user, I just want to be sure, whether my computer is save to work in normal standards, or if I need to worry to lose my work.