By chance is your version of TOX3 from the “Woopker” store? Could this be it? Will if we install Slimbox ATV we will have the “super partition”?
After this restructuring, the Kernel Version went from 5.4.125 to 5.4.210, that is, until “CoreELEC-Amlogic-ne.arm-20.2-Nexus” was 5.4.125, after that it became “CoreELEC-Amlogic-ne .aarch64-20.3-Nexus” forwards the 5.4.210 kernel with the “aarch64” framework.
When accessing the original Android firmware (V.3.4.231103) and opening AIDA64 I can see that the version is Kernel Version: 5.4.125, I don’t know if this is related. But maybe to be able to use the new CoreElec with “aarch64” we need an official firmware update with a new kernel…?