My internet provider have different kind of package, Static and dynamic. what is different.
A static IP will most likely cost more money so if it's not something you absolutely have to have, there's no need to pay extra.
As stated in this article, https://www.whatismyip.com/static-ip-vs-dynamic-ip/ a static IP is one that will never change. A dynamic IP is one that could never change or change frequently depending on how the ISP has their DHCP server set up.