Sura Nisa verse 127-130 and its relevance to prophet's marriage to sawdah

"If a woman fears indifference or neglect from her husband, there is no blame on either of them if they seek ˹fair˺ settlement, which is best. Humans are ever inclined to selfishness. But if you are gracious and mindful ˹of Allah˺, surely Allah is All-Aware of what you do. You will never be able to maintain ˹emotional˺ justice between your wives—no matter how keen you are. So do not totally incline towards one leaving the other in suspense. And if you do what is right and are mindful ˹of Allah˺, surely Allah is All-Forgiving, Most Merciful. But if they choose to separate, Allah will enrich both of them from His bounties. And Allah is Ever-Bountiful, All-Wise."

Does this truly suggest that Sawdah and Muhammad's nearly disrupted marriage was solely due to her age? Wasn't Muhammad fair to all his wives? Every site I visited discusses this specific event while I believed it was just typical counsel. Why is it necessary to take multiple wives if one cannot manage the demands? Moreover, each site mentions that women are inherently jealous of sharing their husbands! Really?! What about men sharing a single wife? Would they be notably generous? Why is there always a tendency to belittle women?