There’s a wiki article about how the Swiss system operates.
Quoting from it :
“In the 2018 Euro health consumer index survey Switzerland was placed first overtaking the Netherlands, and described as an excellent, although expensive, healthcare system”
I visited someone in hospital post-op in a hospital in Vilvoorde, Belgium a few years ago. What was particularly noticeable was that on a board in reception was a notice listing all the doctors and medical professions – over 60 of them – apart from one Chinese name and one Italian, they were all French or Dutch names.