Sensivity settings, turning off voice, notification and connectivity problems

Hi,
I tested the app and I don't like below problems:
- setting the sensitivity, I have no idea how to set these bars. why are the input values not used?
- no possibility to turn off e.g. sound recording
- I have an orbot and I couldn't understand what a "service address" is. Do I need to set up some service on the computer? wouldn't it be possible to just stream from smarthpone's IP and log in with a password?
- I don't understand why I have to insert a second sim to get notifications. Couldn't I do it with my own number?
- my app hangs quite randomly, e.g. browsing logs, samsung j4+
Cheers

Start by reproducing the reported sensitivity, recording, Orbot/service-address, notification, and log-browsing problems, especially on the Samsung J4+. The issue names no files, tests, or entry points, so trace each behavior from the relevant settings and connectivity screens. Done would require clarifying the intended behavior and addressing the confirmed problems with regression coverage.

Written by the indexing model from the issue text.