i remember reading similar headlines about millenials… this bullshit is always targeted at young adults, and its always the same superficial “analysis”
since your priority seems to be software support for openwrt and considering that you have ancient hardware doing the job just fine, you should go for an archer c7, it has 80211n wifi and 5ghz to boot and decent headroom for shenanigans.
you can get one brand new pretty cheap, even cheaper used.
great openwrt support too, cause its cheap and popular.