I created a topic featuring latest Ben Felix video on Swr
There are few others
https://forum.mustachianpost.com/search?context=topic&context_id=9820&q=Safe%20withdrawal%20rate&skip_context=true
You should also consider employability in Switzerland after 50 y.o. It could be an challenge to find a company ready to hire you and pay extra for the 2nd pillar contribution due to your age.