I had a Lumia 920 for 3-4 years now.
Never had a single problem that you describe... Except for tethering, but I tether over Bluetooth anyway.
I can even plug it into any PC/Mac and browse it like a USB flash drive.
It's been less problematic than my iOS and Android tablets and I use it more.
And it's been a durable phone, not a single crack in it... I have dropped it, sat on it, slept with it, even left it in the rain... Everything. Still works as fast and fluidly as the day I got it.
I also have wireless charging. Hate cables.
Ordered a Lumia 640 for a friend, so let's see if the same things replicate themselves that the Op describes.

www.youtube.com/@Pemalite








