I'm curious to see a collection of reports of cases like this (large difference in credit limits of two persons who are married / have same financial situation

I'm curious to see a collection of reports of cases like this (large difference in credit limits of two persons who are married / have same financial situation). I've read about two husband-wife pairs so far. What else has been reported? What about single women vs single men who both have similar financial history? Is there a "share my salary" spreasdsheet but for Apple Card limits. Also, I doubt the new Apple Card is totally unique, and this isn't financer Goldman Sachs's first foray into the personal credit busines. Has anyone encountered this issue with older credit cards and loan products?