The store's Modpack section lists popular packs (tech, adventure, skyblock…). Picking one auto-installs the required loader (Fabric/Forge/NeoForge) and mod set.
Since a modpack overwrites your current profile, the panel takes an automatic backup first — you can return to your old world anytime.
Players must install the same modpack in their own launchers; the pack's name and version are shown in the panel — just share them with friends.
Modpacks use more RAM than vanilla setups; they run smoothest on 4 GB packages and above.