As of Minecraft version 1.13 and beyond, player oxygen regenerates over time out of water as opposed to happening instantaneously.
This mod restores that pre-1.13 functionality with a gamerule 'toggleOldAirReplenish'. It's set to true by default, and you can use the following command as an op to change it:
/gamerule toggleOldAirReplenish true/false
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Minecraft: Java Edition
1.20–1.20.3
Platforms
Fabric
Supported environments
Creators
Details
Licensed MIT
Published 11 months ago
Updated 11 months ago