And yet, here you are intruding on a thread with nothing of substance to say.
Listen, I'm a niche within a niche when it comes to cell phones and how I communicate. I'm old enough to remember building my own 80286 computers as a pre-teen and working the counter at Radio Shack in 1990, formatting HDD on Tandy 1000 SX, HX and EX models. I'm no Luddite but understand that comm technology is a tool to get a specific task done. I don't use my phone as an entertainment device.
There are many reasons why Blackberry failed and that has nothing to do with whether they had the superior tech at the time. The tech history is littered with stories about superior technologies relegated to the dustbin because of a myriad of reasons. Please see VHS vs Beta.
QNX based Blackberry OS, in my opinion, still is the technologically superior device if you need a serious communications tool. But my wife and I used our Blackberry Q10's in very different ways than most people use their phones today.
Getting back to the topic of the original thread, I just ordered yet another Pixel 4a for my 9 year old daughter and plan on installing GrapheneOS on that as well.