My requirements for a phone are pretty similar to yours. I used to have an LG V40 and it was a godsend.
I got a Sony Xperia 1 IV thinking it would be a good replacement, but it’s not. Along with insufficient custom ROM support, I’d also like to add overheating. What’s the point of a great camera if you can’t use it for more than 10 minutes before the camera app shuts down due to overheating?
The fingerprint sensor also stopped working after about a year. A lot of people are having this issue with their Xperia phones, so be wary.
I’ll keep a lookout on this thread to maybe help find my next phone. But currently, I’m considering getting a used V60 and using it for as long as I can.

I got an ASUS laptop with FreeDOS back in 2015 for the same reason. Had to upgrade the HDD and RAM, but It still works like a champ.

That’s some Donnie Darko shit right there.