Couple of important things to note: -

- If you have years of WhatsApp history, moving over to iPhone from Android will mean you will lose all the history unless you transfer via a paid software.

- Dual SIM in iPhone relies on one e-SIM and one physical SIM card, and not 2 SIM cards, unless you get certain iPhone models from China, Hong Kong or Macau

Having regularly switch between Android phones and iPhones, my advice to friends who ask the same question you asked is that it’s probably best not to switch unless you have a compelling reason to switch like for example due to work purposes, use iCloud sharing services with family, or if you have other Apple products and want a seamless integration of your devices.

No, they’re just obsessing over the feature that shows the health of the battery in terms of percentage - it creates anxiety amongst some

The battery of the iPhone 12 doesn’t heat up or drain unexpectedly, however, it is a very small battery. Just 28xx mAh. The closest Apple came to a 4000 mAh was the iPhone 11 Pro Max at 39xx mAh, but then they downgraded again to 36xx mAh battery.

Based on your post, I’d say it’s probably safe for you to stick to Android