Orbi SRR60: Apart from setting a root password in luci what settings should I configure to ensure my router is secure? 1st time using openwrt

Noob to openwrt, just want to make sure there aren’t any dangerous defaults that could leave one open to being hacked apart from setting a root password and strong wifi password? Just looking to setup wifi to connect to the internet using a cable modem. No port forwarding or anything right now.
I flashed a Netgear Orbi SRR60 using nmrpflash. Image file: openwrt-24.10.5-ipq40xx-generic-netgear_srr60-squashfs-factory.img
Followed this guide: https://openwrt.org/toh/netgear/srr60

Nothing, upgrade to latest release.