Life insurance is completely separate from the insurances included in your pension fund. That is to say, your beneficiaries will recieve life insurance benefits on top of the survivors’ pensions which they receive from social security and your occupational pension fund.
The same is true for multiple life insurance policies. Each benefit is paid out separately. So if you get one life insurance for 200,000 francs and another for 500,000 francs, with your spouse named as the benficiary on both, your spouse will receive 200,000 + 500,000 francs, or 700,000 francs in total if you die.
This is the standard practice in Switzerland. If you have foreign life insurance policies, it is worth looking into the rules in their country and reviewing the terms and conditions in detail.
Don’t worry, it isn’t a nube question. Many people have that worry and rightly so, because many insurance companies do include clauses by which they limit benefits based on other life insurance you hold. But I haven’t (yet) seen such clauses in Swiss life insurance policies.