The dungeons generation rate has increased too much, making dungeons generate more often compared to 1.17. There can be too many dungeons in each others proximity.
In the seed example below, you can locate three-four dungeons at same spot.
Example seed:
-4763575971748921266Coordinates:
64 -19 192Comments 3
It could be, but it needs more better tweaking as its generation has been increased too much as of 21w40a.
If this could be left open for few more days until other people could either confirm this as well, if they also think it's generating too much, that'd be great.
This is working as intended as per the changelogs, and brings the dungeon generation near 1.6 standards, fixing MC-225030.
This is intended the amount of dungeos below y=0 have been increased greatly "Increased the amount of dungeons, especially below height 0" this comes from the 21w40a changelog