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Could you elaborate on 5) thermal camera support? How thermal camera could replace normal camera (this only capture infrared light?)? Why thermal camera are more ecological-friendly?

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It would not replace the existing cameras. A thermal camera is a great tool for energy conservation: you can find misbehaving appliances consuming too much electricity idling, compare waste of different appliances, heat leaks at home, find hotspots in devices you maintain (say, a badly connected cable can offer extra resistance and become hot).

Though I don't think thermal cameras will be user affordable for a long while.

I picked up a basic one for about $60 on aliexpress. It's good enough to find heat leaks at home, but only barely, and to get usable results I had to turn the home heating to maximum (to increase the thermal contrast).

The ones that let you just walk into a house and immediately see cold areas cost more like $800.

There are already cheap (ish) add-on cameras for Android and iOS. For example my review of https://shkspr.mobi/blog/2021/10/gadget-review-seek-infrared...

There are a bunch of Android phones which already have this tech built in. Some are high end, but a surprising number of mid-range devices as well.

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