What are the differences between Flyweight and Prototype patterns and where do you use Prototype patterns?

If you compare the Flyweight and Prototype patterns,

• Prototype reduces costs when constructor-based object generation costs are high
• Flyweight shares instances and does not generate objects (unlike Flyweight, including clones).This reduces the cost of creating objects and cloning instances

I understand that there is a difference.Looking at this much, I thought Flyweight would cost less overall than Prototype, and I could do it including what Prototype can do.

So I have a question.

• What is the difference between the Flyweight and Prototype patterns?
• If Flyweight costs less overall than Prototype, and includes what Prototype can do, what would be the use of Prototype patterns?

I know that there is a difference between generative and structural patterns, but I am worried that both of them look the same.

Thank you for your cooperation.

Reference Site:
https://www.techscore.com/tech/DesignPattern/Prototype.html/
https://www.techscore.com/tech/DesignPattern/Flyweight.html/