For videos +3mins do you have a preference for voiceover, text slides or just music?  Goal usually will be simply giving a location, information about a unique creature, setting or occurrence.  Not in love with the sound of my voice but now you can use AI generated voices.  

It partly depends on the context.  If it is going to be shown where it might be noisy, or otherwise hard to hear, text messages are much more reliable.

I like voiceovers with text because I struggle with accents sometimes or I watch reels while my partner is having a nap so I mute the phone and read the captions with the video. I try to do the same for all my posts. I've had people reach out and tell me that they're grateful I put CCs on my stories because they're from another country and say that I speak quite quickly 😅