Are the brothers entitled to demand the value of equipping their apartments, which they have occupied for 25 years, especially given that their father equipped them for marriage, or is their residency in exchange for the equipping sufficient Islamically?

What her father spent on his daughter's marriage is not deducted from her inheritance, because it is an obligatory expense. Nothing is deducted from the son's share on the pretext that his father housed him, but the heirs can demand rent from him after the father's death. Disputed matters between heirs are referred to the Sharia court to hear the statements of all parties.