I have an wrt1900 which i see isn't updated that i don't use but i should use two m2 one for sim slot, another for modem.
Or i saw this " YY3568 " that when i seen it for the first time i searched for some info here but nothing.
I think could run Openwrt reading this post: R68s a new openwrt arm device. RK3568 2*2.5G+2*1G - #58 by tiberio87 , just because buying something like pi5 in italy will cost me double price, circa 200 euros.
But again no dev board have sim slot like pi4 orange and so on, so i think i should try with this
Not listed but enough to do anything with it https://linuxgizmos.com/rockchip-dev-kit-comes-with-2x-gbe-and-wi-fi-bt-5-0-connectivity/