Not sure. I thought the FuriPhone's advantage was that they were making it in conjunction with the ODM so you didn't have to use halium to call into Android. But a quick google search tells me I'm mistaken. Maybe I was thinking of the FairPhone?
I would consider the PinePhone, but my experience with it left me cold. And they EoL'd the Pro and the original PinePhone is fairly anemic by modern standards. I'm not sure it could run HaikuOS at acceptable speed. My memory was the PinePhone also had some land-mines with respect to drivers, but it's been several years since I touched mine, so I could be mistaken.
I'll probably have to spin my own hardware again. I really dislike writing drivers from scratch.
I have issues with the Librem community. But... if you like them, I certainly won't dis you (or them.) I don't think they're bad people or bad developers, they just have a style that sets my teeth grinding. That's a me problem and not a them problem. There's only so many times I can be insulted for liking BSD licenses instead of GPL.