I'm skeptical.

One piece of evidence - around 2020 the US went from being an oil importer to an oil exporter and people hardly noticed.

I also think if Saudi asked to be paid in Euros rather than USD it wouldn't make much difference. People just change currencies into what they need. They are just tokens to facilitate the trade of goods and services like oil for Ferraris in Euro or oil for Boeings in USD. The forex markets are huge.