from the Samsung app store, but it's not the same as the google play store or Apple store (android & iphone store).
that means you can already install apps but the offer is not as good as with Android / IOS. If you want a special app, you first have to find out whether it is available.
Apple TV is bought separately and, as far as I know, is never built in (only Android). Airplay 2 is also used for music, not pictures (and for pictures/videos you should use the Apple TV).
so long story short: they are both not available
SmartHub is exactly the same as on the larger and more expensive models. So with Netflix, Zattoo and Youtube it's tip top. It is the only 32" TV we have found where Zattoo works without an external box. With a weight of about 5kg, you can't expect heavy subwoofers. So the sound is not great, but sufficient. However, it can be expanded with external speakers if necessary. The biggest disadvantage is the external power supply. Especially when wall-mounted, you have to think about where to place the power supply...
The minimum distance between the outermost feet should be 75 cm. Since my pull-out shelf is only 70 cm wide, I had to compensate with 2 wine corks. Is that clear? Greetings :-)
You should be able to pull it out again with a little tug, if it's similar to the snap-in function of a QLED TV, which I own.
PS: Otherwise, ask Samsung directly.