In FUTO keyboard you can customize whole layouts so you can add tab-space as well

What is the source of this info? If it was doing serious damage to them they wouldn’t publish these clients on their platform.

I never had a need for such app, but I guess if you search for “CCTV” in the store you will find a few. That one looks promising for example.

Just keep in mind that videos quickly grow in volume, so you need a fair amount of free space to keep recording for the whole night.

I doubt it shows noise in dB, but you can try to start some app for measuring dB and record the screen instead (?)

What if they reject all cookies?

You should be able to find it on ApkPure

Sould browser have one. It also have something similar fpr browsing images on a webpage.