.ch domains come with domain privacy by default. Since whois entries don’t include personal information. Also whois request are only doable through the official registry and only reveal the registrar and technical information and not personal ones.
Yeah just guessing if the cable supports the right usb-c protocol. The port is great. The protocol is horrible you have like 10 different versions of the same protocol. And you have to pray that your cable supports the right one you need.