It’s been years and in my opinion nothing is looking remotely realistic as a primary phone. A de-googled Android phone appears to be the closest contender and I don’t see anything in that space that runs on more than very specific hardware.

Another approach is a dumb phone and a Linux laptop or tablet, but carrying around and charging two or three devices is not my idea of fun.

Note that I’ve been using Debian as my primary workstation since the turn of the century.

What do you intend to replace it with?

It’s last been updated three years ago, I’d be surprised if it still works.