One should be at the bottom one at the top. I understand space on the phone is a premium but a second port would make the phone so much more usable. Wired headphones, flash drives, camera modules, speaker modules, keyboards, even connection to a TV, all could be used while charging. It’s a shame it’s not a thing, USB is extremely versatile port, but you only get one and it’s used for charging half of the time. (I am aware dongles exist)
This is why I made my dedicated audio player device an older LG phone with a headphone jack and microSD, and more importantly their quad DAC. Great wired audio fidelity and the ability to drive high impedance headphones/IEMs on the go while running on Android so I can run streaming and last.fm scrobblers. WiFi/data and Bluetooth are usually off but there when I need it. At least where I am, this was cheaper than an Android-powered dedicated Digital Audio Player. Of course a proper DAP would have more features like physical playback controls and being able to use them as DACs for other devices, but I’m happy with my old G7.