same issue here, in cell browser also
I have 2 other sites that use WooCommerce Authorize.Net Gateway “Pledged Plugins” and I don’t have a issue with those sites using the duckduckgo browser , just this plugin.
I know the user needs to Disable Global Privacy Control (GPC) to make the credit card block to work, but users will never figure that out. It’s a ux error. We’re talking about the public here. I have plenty of lost sales because of this.