I recommend building your own firewall. There are awesome, FOSS, FreeBSD-based firewall operating systems like pfSense and OPNSense. You can do a whole bunch of cool stuff with them, like block ads, scan incoming traffic for malware, monitor your network, collect data about your connections and visualize them in a nice dashboard and more.
That’s pretty sad to see, Techlore is one of the main ways how I got into digital privacy and security, but ever since they removed GrapheneOS from the mobile OS recommendations section on their resources page, I don’t feel like it’s a trustworthy source anymore. Removing the most private and secure mobile OS from your OS recommendations, while claiming to give people privacy and security-focused recommendations is pretty hypocritical. Instead they recommend CalyxOS which rolls back default AOSP security features, LineageOS which doesn’t even work with a locked bootloader and microG which requires root access. It just feels like a bad joke.