Hey, thanks for the report. Cmd+F is being intercepted by the internal keybinding planEditor.actions.find, which stays active even after you close Plan Mode.
Two options:
Quick fix: Cmd+Shift+P > “Developer: Reload Window” when the shortcut stops working.
Permanent workaround: disable the problematic keybinding:
Cmd+Shift+P> “Preferences: Open Keyboard Shortcuts”- Find
planEditor.actions.find - Right-click > Remove Keybinding
More details in this thread where the issue was debugged in depth: Find keyboard shortcut broken
I’ve passed it to the team for tracking. Let me know if the workaround helped.