@katyblessings I would stick with a name-brand, well-known free AV (Avast, AVG, Bitdefender, Kaspersky Mobile, Norton, Sophos, Trend Micro, etc) to minimize the potential for scams and malicious exploitation. You can use an online search engine to check user and trade-magazine reviews of these kinds of AVs. I'm not sure how many of these might also utilize some of the high-risk permissions noted in your research link, but at least the companies involved have fairly well-established reputations and are not likely to delve into 'scammy' kinds of activities.
The "moment of truth" will probably start to appear in 2020 as manifest V3 goes "live" in Chrome generic distribution. Then we'll start to see whether/if the ripples spread into non-Chrome chromium (and thereafter potentially impact other chromium-based browsers).
Per https://www.bleepingcomputer.com/news/software/google-begins-testing-extension-manifest-v3-in-chrome-canary/ , 1 November 2019: "While they are now in preview, Google expects the manifest v3 to go live in 2020 with the v2 end of life to be determined in the future."
@sgunhouse I made disable IR camera drivers from devices settings menu in windows. normal camera driver is active only. I made disable virus protection for camera in settings ESET. and I let to opera for opening only usb2.0 HD IR UVC webcam camera.
I said to windows HELLO, goodby. bUT opera and camera now working.
Yes at least one other guy has the Login, or at least another Login to the page. Could this matter?
I can resolve this thread though - i created a webmaster account on the yandex-platform. It's indexed and checked by them now, so everything fine now..
@leocg he knows there are differences, he specifically wants to know what they are. what is their defining characteristics you refer to, and what is the specific "public" that each caters to that you reference.