It's not really an issue, since OpenWrt has full support for this device. IIRC the support in OpenWrt 23.05 is pretty good, I have been running 24.10 on a Flint 2 that we use as an AP and I've had zero issues.
I'd argue that even though by default the Flint 2 has a nicer interface for beginners, vanilla OpenWrt is much better. E.g. their old OpenWrt 21.02 build with the proprietary Mediatek SDK does not support baby jumbo frames, which are used by a bunch of providers that still use PPPoE (to get better performance).
I'd argue that even though by default the Flint 2 has a nicer interface for beginners, vanilla OpenWrt is much better. E.g. their old OpenWrt 21.02 build with the proprietary Mediatek SDK does not support baby jumbo frames, which are used by a bunch of providers that still use PPPoE (to get better performance).