I think due to the nature of most streaming services, they require player vendors to support DRM, so there doesn't seem to be any open source or privacy-focused players that simultaneously support Netflix. My solution for now is just sticking a Roku or Apple TV on my Pi Hole
Paddle has a special pricing for selling products under $10, just 10% - so your $1 fee will end up being $0.10 - it's upon request so you have to ask, but I was making zero sales and they still enabled it for my account.