How can one use a more up-to-date ath10k-ct firmware and modules, etc

I am happy to try your community build. I assume the ones you posted about here.

To which subfolder would you direct me? owrt1907-r11086-ab7e9754df-20200525? I assume the corresponding *sysupgrade.bin.

Newb question: once flashed, will opkg therein be setup to pull modules and packages that will work with the new build? On my system, I always reinstall the following after an update:

kmod-usb-storage kmod-fs-f2fs block-mount rsyncd luci-app-sqm

Final newbie question: if the build is unstable, I assume downgrading to 19.07.3 is as trivial as reflashing the corresponding bin, yes?

Thanks.