No. Bank oversight comission required banks to offer fixed rate mortages only after swiss franc mortage crisis (2009), and not shorter than 5 years. What happen

No. Bank oversight comission required banks to offer fixed rate mortages only after swiss franc mortage crisis (2009), and not shorter than 5 years. What happened was banks introduced fixed mortages for 5 years, after which time you move to variable mortage, or update rates for next 5 years. Banks also made those mortages noticably pricer, so few people picked them (me included).