Webstrom shortcut key conflict?

ctrl+c cannot copy code in webstrom. When selected, moving the backspace cursor forward is not a deletion, and ctrl+f is not a lookup. Excuse me, what is the reason for this?
the shortcut key settings for ctrl+c and ctrl+Insert can be copied with ctrl+Insert. What is the reason for this?

Mar.19,2021

install webstrome. Do you install a plug-in for vim by default? just uninstall that plug-in

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