the issue with the low audio in handsfree mode is described by you in this post:
the last reply was in July’21 which states that the problem is still unsolved. No further posts about which update was supposed to solve it. What was the response to your support ticket 425463 that you mentioned in that thread?
There is also this thread here from Aug’21. @OneZ had similar problems (I can also confirm his 40% problems with the fingerprint reader):
Even in this thread there is no post about an update with which the issues were supposed to be resolved.