You don’t get to choose to have your company invoicing Wizzair or stuff like that.
Either way, with Confair or direct contract, you WILL have swiss taxes deducted from your salary, whether you like it or not, and it’s going to be you as a person to have a contract, not some company that you choose to set up.
It’s a take it or leave it kind of deal, zero bargaining power from your side: nobody is working for Wizzair the way you keep suggesting in the last 50 posts, and you are not going to be the first.