I tend to go with Panasonic because they make excellent panels. Mine doesnt have ads anywhere in the UI & doesnt have a camera or mic. Our set was originally released in 2021 & still looks great. The menus aren’t great but once its set up we never use them, its turned on/off & thats it. Never connect it to the net. Ours is connected to HTPC & amp
An alternative would be to get a monitor & connect USB TV tuner to your media PC/HTPC
Can’t help with payments but if it’s a loyalty card wallet you’re after, zCard is excellent & allows you to add your own image/art for the card
Edit: just re-read your requirements, zCard doesn’t use NFC. My bad, I should pay more attention. Still, it’s a good app so i won’t delete my reply just in case someone else finds it useful