I have Dynalink DL-WRX36, running openwrt since day 0. Iirc it was 60 euro year ago. Everything works, wireguard too. No complaints. I believe there is openwrt stable build for it already, though I an still running snapshot as I am too lazy to update.
RIP to the Minsk fridge my granny used until 2022. Built end of 70s, that thing was continuously in use for 50 years.