Update 2022-02-16: According to information published by the government on Wednesday (16 February), Switzerland will lift most of its COVID-19 restrictions on Thursday (17 February). With a few exceptions (e.g. public transport), the mask mandate will be dropped and a COVID pass will no longer be required to access venues or attend events. Restrictions on private gatherings will also be lifted.
In addition, as of tomorrow, the entry restrictions will be abolished, i.e. no entry form needs to be completed and proof of vaccination, recovery or a negative test result will no longer be required.