Non-profit organization project advice

hey there,how you’re doing good.
i’m planning to build a web app for a charity organization
Q1)is it okay if i deploy using netlify or is it important to have a paid domain
Q2)im a frondend dev , can i do the payment option for the donation without much of backend ,since i dont know backend

Q1: It’s depends on how many people visits that site but netlify is ok,
Q2:You can use Stripe