ATV9 is the most stable port for x86. It has fewer memory leaks than the experimental ATV10 builds.
Unlike open-source AOSP builds, a top-tier ATV9 ISO comes pre-loaded with the Leanback Launcher, Google Play Store for TV, and YouTube for TV. atv9 x86 tech info iso top
ATV9 x86: The Technical Deep Dive into the Ultimate Android TV ISO ATV9 is the most stable port for x86
Using a dedicated x86 ISO eliminates the overhead of ARM emulation, leading to near-instant app launches. Google Play Store for TV
It is significantly easier to implement Magisk or SuperSU on ATV9 x86, allowing for deep system tweaks and ad-blocking.