UEFI only boots if partition identifier is set to ef00

[trbntwo]

I partitioned my sdcard with gdisk and it is inevitable to set a partition code in gdisk. The Pi 4 boots to the screen with the raspberry when this code is set to ef00 , if the code is 8300 for a normal linux filesystem the Pi 4 boots in the Pi 4 error screen. In the README is stated that this shouldn't make a differences. Or did I get something wrong?