New comment by PaperMountainStudio on void-packages repository

https://github.com/void-linux/void-packages/pull/23541#issuecomment-681909429

Comment:
@aisecat I tried adding `arm_64bit=1` to `/boot/config.txt`  on both musl and glibc PLATFORMFS images and it didn't work. I am still stuck on the rainbow screen.
My bootloader firmware should be the latest stable - Raspberry Pi OS's `rpi-eeprom-update` tells me there are no updates (I have FW from 16. Apr 2020).
Using 64bit kernel on Raspberry Pi OS worked when I added arm_64bit=1 to /boot/config.txt. I also noticed, that Void is using a different config.txt than RPiOS, but that doesn't seem to matter.