The "Slack Freeze" on Windows 11 is almost always a GPU or memory conflict. Turn off Hardware Acceleration first—it is the most reliable fix available right now.
Prevents conflicts between the Electron framework and your GPU drivers. slack freezing windows 11
Re-registers app components without deleting your local data. The "Slack Freeze" on Windows 11 is almost
Use Ctrl + R to force a refresh of the current workspace, which can snap the UI back to life if it's just a syncing delay. Core Solutions for Persistent Freezing slack freezing windows 11
Here is a look at why this happens and, more importantly, how to fix it.
Note: You may notice slightly slower scrolling or animation, but the trade-off is a stable app that no longer freezes.