If I had to guess, the $19.99 + taxes will appear on your CC. I don't think Peacock charges any other BS fees, but I could be wrong. What you want to look for is when your subscription automatically rolls into the normal price (currently is $59.99/year) unless you cancel.
I have friends that have Peacock and they like it. Of course they also have Hulu, Prime, Netflix, Apple TV and a huge antenna on the top of their house for a clear signal for local channels. They used to boast "We don't need cable, lots of stuff on local TV and if we want to watch a movie, we rent one, the library is only 10 miles away."
I totally understand those comments about people not needing anything but local TV. Then they end up with a million different services adding to their viewing bills. I was one of those suckers, until I went to IPTV.
I can enjoy so much for free, and as far as commercials, I do the same thing as I did way back when all we had was regular TV. I tune myself out, when the commercials come on. Another thing I like about all these freebie services is that I can watch what I want, when I want. I don't have to schedule my life around watching a show at 8PM, and to guarantee I do, turn my phone off.
My wife and I watch two shows on regular TV, that's it, and we watch those when we want, over our Spectrum Demand, which is part of our Spectrum TV/Cable package that's free. We use Awesome, Fawesome, Hulu, and a dozen different sources, and each of them will have a lot of shows that are different. Then there's also You Tube, where we can pick up a lot of what we want that's available, including full length movies, TV shows, and other entertainment we enjoy.
We have Amazon Prime, because we spend over $3,000 every year on things we want, that aren't available in stores, or are over priced in stores. The free shipping pays for the service plus. Add in our getting the video service, and to us, it's a steal.
You just have to dig, and be creative, and you can set yourself up with a viewing library you'll love. We quite often will binge entire seasons of a show, because it helps following the continuity.
Anyhow, it's all what you make of it. I won't have to pay a penny for the games on Peacock, anymore than I do for watching the Packer games every week, despite being out of territory. Or, for that matter, after discussing viewing habits with a friend from New Brunswick, Canada, told him while we were communicating out here that I was watching his local TV station at the time, and I live in South Texas, a mere 2,613 miles away,
You just need to do your homework.