F3 has been the "Find next occurrence" function under Windows in virtually every program almost since the very beginning.  I use it constantly.

A variant on that theme is even used in screen reader finds, where "screen reader key" plus F3 does a screen reader find next.
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Brian - Windows 10 Pro, 64-Bit, Version 20H2, Build 19042  

The depths of denial one can be pushed to by outside forces of disapproval can make you not even recognize yourself to yourself.

       ~ Brian Vogel