What will be the bets fixed WiFi data rate mode for long range communication?

[Miyuki]

Hello,
I want to ask if you can help me to choose the best, I assume fixed, data rate mode for long-range transfers 500-1000m
I need to transfer a few KB/s of UDP packets with as low loss as possible over a relatively large distance

I'm considering using something like WIFI_PHY_RATE_2M_L or WIFI_PHY_RATE_6M

It will be star-like topology. One ESP32 as a central hub in AP moce. Few ESP clients. And optional one setup interface over WiFi from Phone or so.

What will give me better reliability?
Have you any experience?