Are my default settings on my Xfinity Xb8 Router safe enough?

I am asking because when i enter my router settings through administrator, I notice that the router security is set to low by default. And I am wondering if this is safe enough for gaming and browsing the internet. I do not go to malicious websites, and I try my very best to not click any links that look suspicious or aren't from a reputable source. I will sometimes download images to my phone from google images as long as they are not licensed, and it will allow me. But other than the things I mention I try to keep a safe browsing habit. I do game but I always download games from sources like steam, epic games etc. So, is this default (LOW) security setting the Xfinity router comes with safe enough for what I do? And if not how do I increase the security to medium or high without making websites stop working correctly? Because I have read that if you increase the security, you may find that some websites may not function as they should due to the firewall or whatever blocking stuff it thinks is malicious. I am a little tech savvy but when it comes to adjusting router security, I've never done it. I have done port forwarding but I don't know anything about the security aspects. For example, I don't know about WPA, WPA2 or WPA3 or IPv4 or IPv5 or IPv6. I don't really know the difference between these WPA's and IPv's. If you know how to increase security on the Xfinity Xb8 router, please explain step by step how to do this thank you. PS. you will have to explain it to me like I'm 5 years old lol.