We have the list, but we can't tell you when to expect the updates to finally roll out. Some companies, like Samsung, have almost finished their rollouts...
I have 14. There's literally nothing to get excited about. Don't make this a factor in your decision. Honestly I'd be fine with Android 10 at this point.
Android has hit a brick wall in development, with mountains of low-hanging fruit that could quickly and easily make it better.
I am not sure if it's only me, but I have noticed much faster Wi-Fi connecting after enabling Wi-Fi on Android 14, so that's one thing. But it may be also caused by kernel update and has nothing to do with Android 14.
Motorola is one of the few android devices I will still actually buy, Affordable prices, not heavy on garbage, somewhat repairable and pretty good for custom roms