This is nothing new. Although some times there are referral bonuses, usually being a long term committed customer means absolutely bupkis.
I use TrendMicro HouseCall for home networks. Gives lots more information than just in the router table. And it's free. https://www.trendmicro.com/en_us/forHome/products/housecall/home-networks.html
I can’t remember which way I did it, but this worked...https://geekflare.com/find-windows-wifi-password/
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