Although the article is about an e-voting fuckup, there’s a bit at the bottom that mentions that one of the things being voted on is about cash:

"Two of Sunday’s referendum questions focused on the availability of cash. Nearly three-quarters of voters approved a government proposal to enshrine the mandate of the Swiss National Bank to supply physical cash and stick with the Swiss franc in the country’s constitution, while a similar proposal backed by campaigners was narrowly rejected.

This is despite Switzerland having one of the lowest levels of cash use in Europe with just 30 percent of physical transactions in 2024 involving notes or coins."