Hello, here my answers:
1. That's something I could live with, I do wanna help to improve the development
2. No, only there, I don't have telegram ir some similar to test. When that happens, I always have to reboot phone to correct, my version is 2.20.123, last update from my country (Brazil)
3. No, the phone heats without usage
4. Everytime that I wanna play something with external audio