I suggest that mesh is the best if you have low interference; things like Microwaves (kitchen) and other devices generate noise and can attribute slow to no network information. Modern equipment falls back to the lowest speed to compensate and, if left to auto for channel selections, will adopt less congested channels.
As for SQ, a packet that arrived is a perfect packet unless it’s not, then it’s sent again till it does arrive perfect, or you get dropouts after X number of retries. It makes no difference in what equipment you choose to use; SQ is the same. As long as the packet arrives...