The Orion (not Gemini) spacecraft is indeed more heavily shielded than the Apollo capsule.
The Orion spacecraft is built to a higher shielding factor for at least two reasons. First, our health standards for astronauts are more stringent. Astronaut is an occupation now, not a derring-do hero scenario. As such, federal regulations impose standards on exposure to hazards which may not simply be waived or signed away. Second, Orion is intended for longer-term habitation and so cannot rely on being operated only for brief periods of time.
However, as I pointed out above, the higher radiation protection standards to which Orion (and presumably Starship) must be engineered for the nominal case are already met and exceeded by the Apollo spacecraft—albeit without an engineering margin. Orion provides that margin, which is why it is an acceptable design for the modern age. But by international standards, the Apollo command module provided a suitable shielding factor.
Because
@Vixen doesn't know anything about physics, all she can do is keep repeating the many-times-debunked claim that the command module had only a "thin aluminum skin." She's been told many times what the actual composition of the spacecraft is. She simply doesn't care. She's committed to the lie.