I run openwrt on an ancient Netgear WNDR3700 which is probably 15 years old by now. I can get around 900Mbps on my gigabit connection (wired). We only have two adults in our home using the Internet (for now until our two kids are older!) and it’s been totally fine for us. openwrt is a great way breath extra life into older routers. A lot of homes don’t really need anything fancy or recent.