it’s not fake, bing rewards has been a thing for many years. It’s literally just using bing to search things, each search gives you points, and then you redeem giftcards (amazon, uber, etc)
I guess most here don’t particularly care, but the points mechanic it’s nice
I use a self-hosted invidious instance, and despite the recent issues with Google trying to block them mine works behind Mullvad VPN.
I use the web app on desktop, and Yattee client on my phone/ipad