Debugify fixes more than 70 bugs listed on the official Minecraft bug tracker - and does nothing more. It replaces several smaller fix mods, such as entity collision and chunk saving fixes.
Fixes cover both client and server, and each one can be toggled in debugify.json. Available for Fabric, Quilt and Forge, Minecraft 1.19 - 26.3.
The server-side fixes only apply once the mod sits on your Minecraft Server Hosting too, which takes one click in the panel.