Obsidian Farms

Obsidian Farms are significantly modified on Vanilla X due to Wither behavior being changed on Vanilla X to improve server performance.

Due to these changes, the majority of YouTube or TMC Catalogue 1.21 overworld obsidian farms do not work on Vanilla X.

End Obsidian Farms

There are a plethora of end obsidian farm designs floating around, however this design by Dropjawed is designed with Vanilla X mechanics in mind and is extremely compact, while avoiding any pointless extra steps.

https://www.youtube.com/watch?v=QU-QzQRITK4

Overworld Obsidian Farms

Note: If you have any knowledge of a 1.21 overworld obsidian farm that works on Vanilla X and has been tested for multiple hours, please DM "dropjawed" on Discord.