firstly, a half sorry for reporting that now, but at the time i noticed that there was 1.18 very fresh, and i found that, and wanted to report that but cause of the register stuff in that forum here, i was like okay then no, because firstly i dont want to give out my phone number.

This bug started in 1.18, 1.17 is all normal, and goes on to 1.19 and 1.20
because if you select in single biome the nether or end there is no end stone or nether rack, there is grass what should not be there (see screenshots), i guess that is all needed to know, if there are still questions, be free to ask