There used to be a way to plug in a USB into your computer & it would get internet connection anywhere that a cell phone would work
This was years ago
It would not involve paying to install stuff into your house
I do not know about the level of privacy or speed
Maybe you could get it as a back up internet connection or see if it is more reliable then the internet connection that involves installing stuff in your house
You could buy the device for very cheap at a cell phone store
If I remember correctly it was much simpler it was a little tiny USB with nothing connected and it was cricket and you just stuck the USB in the computer then the internet would work
No big device like in your picture
It would use a cell phone signal and you paid for the device and it was not a cell phone and I am not talking about using your cell phone connection to access the internet
A lot of people told me cricket spied on people and that was how their prices were cheap
I deleted and redrafted the post that this comment most likely replied to
It said, "AT&T has something similar. teen mobile too."
https://merovingian.club/web/@DMA@nicecrew.digital/112992275539070527