It’s both, people don’t draw inspiration from just one thing. It’s also Hidden Fortress, but that doesn’t make the WW2 elements any less relevant. Star Wars is about the fight against fascism and imperialism in many forms.
The way starfighter combat works is definitely WW2. There’s some hand wavy explanations in-universe for why it works that way, but it clearly comes from WW2 fighter and bomber turret footage.
Politically, the empire is pretty clearly Nazi-coded, but I don’t think Lucas ever had more than a surface level understanding of fascism.
The original trilogy is all about Vietnam, weird take to call a New Hope WW2 but you got the spirit.
It’s both, people don’t draw inspiration from just one thing. It’s also Hidden Fortress, but that doesn’t make the WW2 elements any less relevant. Star Wars is about the fight against fascism and imperialism in many forms.
The way starfighter combat works is definitely WW2. There’s some hand wavy explanations in-universe for why it works that way, but it clearly comes from WW2 fighter and bomber turret footage.
Politically, the empire is pretty clearly Nazi-coded, but I don’t think Lucas ever had more than a surface level understanding of fascism.