I have many nerdy friends who have been Linux users for ages. But most of them don't know such a thing as Openwrt exists or have never bothered to give it a try. It's a very fun piece of software to play with and can be extremely useful for routing traffic. Wondering why it isn't more popular/widely used.
I personally use it on a protectli with the 2.5G ports. I also replaced my ISP modern with a protectli running OpnSense. Decided to opt into that as my solution to have two different softwares protecting my network and also so I could scope internet facing devices at the OpnSense level instead of internal to the network. Just in case they get compromised, they can't access the rest of the network. Call me paranoid... But I also find it much easier to manage lol.