I'd like to make the argument that "we" believe otherwise.
It is legal to keep some logs for a limited amount of time if you run an IT service in Germany, mostly for the purpose of keeping the service running properly. If you have that data, you can give it to LE when they request it.
The thing accepted by the public at large is often codified within a country's laws. German laws generally do not require you to store logs if you are an ISP. Storing them for too long can even be unlawful. There is no so called Vorratsdatenspeicherung anymore, and it is a recurring topic of political debate. So at least in Germany, the public view on storing data is more complex, and people don't believe not storing data or reducing the amount of data stored is clearly immoral when running IT services. https://de.wikipedia.org/wiki/Datenvermeidung_und_Datenspars...
On another note, if LE requests you to log specific access patterns in advance, you might have to do it. If your ISP services are really big (lots of users), you might even have to provide some sort of interface for LE. IMO and under certain interpretations of the involved laws, the German state could ask every single node operator in Germany to log everything, but the political backlash would be quite high.
Does this work properly on mobile/without headsets for you?
Our problem was that we had way too much echo/reverb, especially when people were not using headsets. Just having one non-headset user killed it for us. IIRC even one user talking into their phone normally (i.e. no "loudspeaker" setting activated on their phone) killed our conversations because people heard themselves talking. I've tried finding a setting that would be OK to use when no headset is available, but I just couldn't get it to become bearable.
I'd really like to use something self-hosted, but I can't control what devices people use, and users are way too used to simple interfaces. I've also tried a self-hosted Jitsi meet instance more than a year ago, which for some reason has much better echo reduction, but it sometimes didn't work for one or two of our colleagues for unknown reasons, maybe because most of us have Firefox, not Chrome, or mobile browsers.
The android app didn't work on my Sony Z1, but I've since changed phones and it seems to work now.
Is it wrong? Did the book actually just call the time and month, not day?