Last time I bothered with news from Pine was with that Manjaro and bootloader drama. I am not even sure what came out of that...
But the other issue is I just found out from this post that PineBook Pro has been discontinued. But it is well listed in their devices, a shop exists just fine, with a price tag, it is just out of stock. Forever, apparently. I thought they were just being stingy with their production sizes, or they just didn't have enough traffic to make more.
Oh well, you can install postmarketOS on Chromebooks with ARM processors, and "normal" Linux is going well on other ARM devices, too. You can also find RISC-V laptops on Alibaba.