So I think the answer to how to declare dividends and profits done with interactive brokers in Switzerland is still unanswered. Am I right? This is a major blocker for me at the moment.

I earn a bit less than 120k so I'm not supposed to do my tax form. Would I need to start to do it if I use this platform? If I need to use this tax form, do I need to report all dividends and transactions made during the entire year?