Is it permissible to fill out the beneficiaries' form for the compulsory life insurance provided by the company, and is it necessary to specify the share of each beneficiary according to the laws of inheritance?

Only cooperative insurance is permissible, because commercial insurance involves ignorance and uncertainty. Whoever participates in it voluntarily is sinful, but there is no sin upon the one who is compelled; the sin is upon the one who compelled him. If an employee is not compelled to fill out the beneficiary form for insurance, then it is not permissible for him to fill it out.