Breaking just one log block (usually the bottom one) causes the entire tree to drop as items.
By default, it fells trees up to 100 blocks to prevent lag, but you can increase this in the configuration files. How to Install the FallingTree Mod skachat mod na padaiushchie derevia
The FallingTree mod is a highly customizable utility mod designed to speed up resource gathering without breaking the game's balance. It is widely used because it supports both and Fabric mod loaders. Key Features: Breaking just one log block (usually the bottom