PolyMC is a custom launcher for Minecraft that focuses on predictability, long term stability and simplicity.

Features:

• Easily install game modifications, such as Fabric or Forge
• Control your java settings
• Manage worlds and resource packs from the launcher
• See logs and other details easily
• Kill Minecraft in case of a crash/freeze
• Isolate minecraft instances to keep everything clean

For flatpak users:

In flatpak, all java versions that are required by Minecraft are included.

If using a Hybrid-Graphics device, you can use the prime-run script as a wrapper command to run Minecraft using the dedicated graphics card.