With this mod, you can break whole trees by just breaking a single block at the bottom, and the leaves despawn a lot faster.

What sets this mod apart from other similar mods that I've tested, is that it doesn't remove more leaves than the vanilla leaf decay already would. If you break a tree that is connected to others, it won't remove any of the leaves that belong to the other trees.
You can break single blocks by sneaking.
The time it takes to break the first block also depends on how many blocks are connected, bigger trees take longer to break.
At the moment the mod isn't configurable, though I will make it at some point.
Compatibility
This mod works with all logs in the minecraft:logs tag, and with all leaves extending the LeavesBlock class
I tested a few tree types from the following 3 mods, all of them were automatically compatible:
You can install this mod on a server, and people without the mod can use it, though they will see the broken block reappear until enough time has passed for the increased block break time.
How to Install Tree Chopper (Mod)
Tree Chopper by Bestsoft100 is verified for Fabric across Minecraft versions 1.21.1 (latest release: 1.0.0, file size: 16 KB). Follow the steps below to install it safely from ModCraft.tv:
- Click the Download button above and select your Minecraft version (1.21.1) and platform (Fabric).
- Make sure you have the compatible loader or environment installed for Fabric.
- Move the downloaded Tree Chopper file into your Minecraft
.minecraft/modsfolder and launch the game.