Apart from that, take a look at https://bkil.gitlab.io/secuchart/ and user feature (leftmost column) Video calls for messengers with Android F-droid/apk yes.
With a Guardian repo's Tor Browser package installed you can use FFUpdater to update, which pulls the torproject's .apk (currently 13.0) and later will keep it updated.
% curl ipinfo.io/ip
curl: (7) Failed to connect to ipinfo.io port 80 after 25 ms: Connection refused
% curl https://ipinfo.io/ip
curl: (7) Failed to connect to ipinfo.io port 443 after 29 ms: Connection refused
They suck and apparently block curl (and lynx and elinks) from dynamic IP, it works in Firefox or on a server with static IP.
AFAIK the language is displayed when the user has multiple languages enabled and selected one for a post (or some automatism selected it). Why would you want to hide it?
Right, no "soundproof" curtain will absorb low frequency noise (which street noise unfortunately to a large extend consists of), regardless what ads are trying to sell you. Heavy curtains can absorb high and mid range frequencies quite well and professional acoustic curtains made of heavy (≥500 g/m²) Molton or Calmuc are the best you could get (the cloth costs about 10-15 €/m²), but if honest producers will tell you they won't help against low frequency noise. Anyway, if your windows aren't too large you could try that for a few bucks..
The best bet are new insulated vacuum triple glass windows that aren't cheap at all.
A jealous partner seeing the car where it shouldn't had been is enough, isn't it? Or the boss where the worker should had been elsewhere, or..
Inhabitants of small districts also don't need a license plate database to know.
So many to choose from.. https://bkil.gitlab.io/secuchart/