Thanks for mentioning this!  It reminded me to go check if this kind of thing is possible.   See if this is what you want.  I started with this link, but it wasn't matching up with my phone settings.   So I went to Settings - Apps - Waze - Open by default - Opening supported links - Open in this app   That set Waze to open "by default".  I returned to The Official Geocaching App, "navigated by car" to a Geocache, and Waze popped up!  The Geocache within Waze is call
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