Hi Lars,
regarding 1), Tune outputs a status table every 5 seconds. If no result is received, the table will remain the same.
In the latest master, we introduced a timer, with this you would see that time progresses:
== Status ==
Current time: 2021-10-20 09:14:28 (running for 00:00:52.47)
Memory usage on this node: 11.2/16.0 GiB
...