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

“The very first Mozilla logo, after the decline of Netscape, was a phoenix reborn from its flames. When they had to change their name, they opted for an animal that was not well known on the web at the time. It was the red panda. Unfortunately, people thought that the animal on the Mozilla Firefox logo was a fox. This “firefox” is actually a red panda which is a protected species in Asia. A mistake when translating red panda from Chinese to English is how we got firefox.”.

From: https://www.freelogodesign.org/blog/2019/06/14/the-story-behind-the-mozilla-firefox-logo

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.