some information about firefly!

Hello,

I saw that photoshop has also its AI (firefly)

I have subcription for photoshop which I don't use much

only to resize images. my questions are:

1-is this firefly included in photoshop or I have to pay for it seperatly.

2-can I generate any image with writing my desires or even talking?

3-I see that Midjourny is the best choice which I didn't try it yet . wil the firefly has also the same features as Midjourny?

4-how I can download it?

5-can I create also svg images ?

thanks