I would not recommend connecting the device to the TV via cable. Huawei often has specially configured connectors, so it is often a matter of luck which cable works and which doesn't. This is the case, for example, with the USB c to jack plug.
I would rather work with screen mirroring.
Here is a link that will take you further:
https://tipps.computerbild.de/mobil/android/huawei-mit-tv-verbinden-so-koennen-sie-ihre-fotos-streamen-518019.html
Yes, GPS does not depend on WiFi nor Cellular. The only thing you may notice is, that the GPS will take a bit longer to find the position because it cannot download the A-GPS data from the Internet so it has to wait for the data from the GPS satellites. But we're talking about 45 Seconds longer here so...
yes Google services are still free and the Playstore is also still active Netflix can also be used there as far as I know only the devices where newer are affected
Unfortunately, no; if you are looking for a tablet that has a SIM card slot, you can select the corresponding mobile phone standard (e.g. 4G) in the filter and only tablets with SIM card slots will be displayed.
We'll probably go with a longer USB cable. But I connect my tablet to the TV with SmartW View. It's easy over the Wi-Fi and there's no tangle of cables.
No, there are 2 speakers at the bottom. The manufacturer is not mentioned anywhere. If these were from Harman Kardon, this would definitely be used as an advertisement and mentioned accordingly.