I really think Albus and Gellert would have done better in an alternative universe not modern, but older - or rather, with less set conventions, because both Albus and Gellert are ambitious reformers. The closer to our world it gets, the less they could do without a risk of breaking things, and being seen as tyrants I think the Grindeldore relationship have a better chance of being a good thing, in a Game of Thrones ish AU, where they’ll actually be good for each other. I have a plot idea where Percival Dumbledore was executed for either allegedly committing treason, or by association due to someone else in his family - and his children barely escapes that fate. It is growing up where diplomacy was Albus’s only protection against the world for himself and his siblings that makes Albus extremely skilled at manipulation, and lonely. Basically Albus stuck in Sansa Stark’s shoes.