This issue could have been linked to the issue of jigsaw structure sets generating chunks infinitely, since after the fix in 1.21.100 it seems no longer to be a problem.
I believe there is another part to this issue. Normal dirt paths are not getting replaced by grass blocks, as they are on java. 10% of all dirt paths should get replaced by grass blocks if I’m not mistaken.
This issue could have been linked to the issue of jigsaw structure sets generating chunks infinitely, since after the fix in 1.21.100 it seems no longer to be a problem.