> never answer that phone
Yes. A long time ago had to give a landline number to school, to have a discussion with them 6 months later on why they expected us to ever pick it.
We only ever used that line for international phone calls, and after cancelling it it basically made no difference in our life, except the savings. We give our mobile numbers when asked for landline, bullshit numbers to spam companies, block the ones that still get a real number, and ask relatives to call us on any other reliable service (international call quality was garbage anyway)
Superior to what? With VoLTE the only calls I make these days that sound bad are people on POTS lines.
it's also useful to own the line you claim to own in the off chance of a verification of some sort.
For me, with multiple people, it frequently aggressively mutes the microphone in noisy environments such that they're speaking and it's entirely silent on my end. You can't turn this off, there's no setting. I can't speak to my parents if they're outside and it's windy or if they're in the car, or often if they're just on speakerphone inside. It's ridiculous.