Yup! It's actually the reason I went digging to to get pstore working. As I'm dealing with the dreaded ath11k firmware bug. and here on my NSS builds.
@sppmaster , @Spacebar are you still using 2.7.0.1? I'm seeing the issue when I have 802.11r FT enabled on my DL-WRX36, and clients transitioning from the other 2 MX5300s. It doesn't happen on the MX5300, since I'm using the WiFi 6 radio as backhaul, and qca9984 for the clients.
It looks like it helps, but I'm seeing other issues, mostly lower throughout and firmware being super sensitive to any wlan config changes.
The ath11k driver by default will run in frame_mode=2, which is to encapsulate native WiFi to Ethernet frames. Which is also required for NSS offloading. Are you running in monitor mode?
Can't really comment on stock, since primary driver qca_ol is proprietary, among a whole stack of other qca_* modules.