I have a mix of wifi and POE cameras and they all work for me.

Can vouch for this. Been using a bunch of Reolink cameras with BI for years. Be careful with Reolink, though. Some cameras work fine and some don’t at all, unless you use some middleman software, which is still hit or miss. Ran into this recently with a camera I got for my garage.

Edit: The Reolink Lumus line is NOT compatible. They don’t broadcast rtsp.

I use it all the time. Only issue I have is it sometimes keeps my phone screen on.

I have a fold 4 which I love. Was thinking about switching to the flip so I went to check one out. All the reasons you listed where the things drawing me to it until I remembered I wear a smart watch and do all that already without taking my phone out. Then it became useless to me. The only benefit would be the small form factor when in my pocket but like I said, I have a fold, big phone in my pocket doesn’t really bother me. And the biggest thing in would miss is being able to set my phone down half folded and watch videos on the vertical half. A feature I didn’t think I would use but I do all the time.