It's not a hard-running race. PREEMPT_RT is soft realtime and if you rely on it for your brakes you're going to crash. AGL has not yet produced any kind of usable system that can be certified for functional safety under ISO 26262 or IEC 61508. Just a core kernel with no drivers.

We run into a lot of OEMs who switch to Linux because of AGL and come crawling back to QNX many expensive months later to start over with a viable solution so they can deliver.

Toyota has adopted the flutter IVI shell in their newer cars. You could argue that it can also run on QNX but the real push behind it has been the growing interest and effort behind AGL.

QNX hypervisor architecture allows companies to adopt AGL gradually bringing in the productivity benefits of stuff like flutter and Linux. QT is hell, their entire moat has been the automotive industry/highly embedded devices and seeing Flutter chip away at even a small portion of it gives a lot of hope for a better competitive landscape for more productive and performant embedded guis.