I appreciate your attempt to try Apple as an Android user. iOS does do things differently. After you created your list of cons and before you published, you should’ve asked an experienced iPhone user if you were missing anything. Your complaint about how difficult it is to open apps without app menu wrong. Apple just does it differently and easier. Just swipe down from anywhere on a page and you get a list of recently used apps that you can open and a keyboard. Type a letter on the keyboard to get a list of all of the apps that start with that letter as well as other relevant apps. I have over 100 apps and can open any one of them within two seconds with a swipe down and two taps. No need to flip through screens
You certainly can use custom ringtones. I have several. If you had Googled “iPhone ringtone “, you would have found this from Apple explaining how to do it. https://support.apple.com/en-us/HT207955
To get to any punctuation, don’t tap the 123 key, use it as you described for the period key in Android. Place your finger on the key and slide to the comma or any other key. It will place it and return to the main keyboard.
I’m sure other can address some of your other issues.