This is my iPhone's lock screen. I intentionally black out the background and remove all widgets. My goal is to have it be a distraction free as possible. I don't think the OS allows me to remove any of the remaining items from the screen.

I did just add a widget today though. Obsidian's latest update now provides a lock screen widget I can press to quickly open and begin writing in my Obsidian vault. I have a feeling that little feature will help me write more.