The first typed characters of my query are missing
If you find that when pressing Cmd + Space, the first characters you type are missing from your query or the Alfred window doesn't appear the first time, there is most likely interference with the hotkey.
This may be caused by the Dictation feature in macOS, which can be set to use "Press Command Key twice". Find out how to disable the "Press Command Key twice" combo that may interfere with Cmd + Space in Alfred.