I've had the Nova 7 for a bit now. For gaming, especially with titles like PUBG or Fortnite, it holds up well with medium to high settings. I haven't noticed significant overheating, but I do tend to play in shorter sessions. As for AppGallery, if you need apps not available there, APK sites or using third-party app stores can be a workaround, but be cautious about security. On 5G, the speed improvement in cities with good coverage is noticeable, especially for streaming and downloads. For battery life, lowering screen brightness and turning off background apps helps without impacting performance much. For accessories, I found that rugged cases and tempered glass screen protectors are great for keeping the phone safe.