Summary:
There is no /gamerule commandModificationBlockLimit in Bedrock. In Java Edition 1.19.4 it has been introduced, but didn't make its way to Bedrock.
https://www.minecraft.net/article/minecraft-java-edition-1-19-4
Added commandModificationBlockLimit, controlling the maximum number of blocks changed in one execution of clone, fill and fillbiome
Steps to reproduce:
Enter a world with cheats on.
Go to chat.
Type:
/gamerule commandModificationBlockLimit/gamerule commandModificationBlockLimit
Observed results:
There is no /gamerule commandModificationBlockLimit in Bedrock.
Expected results:
It should be there in Bedrock as Java Edition has it in Java Edition 1.19.4.
Can confirm.