I'm using normal JB Rider 2022.1.2. I've tried looking everywhere and searching the right keywords for the setting that would bring this back, but haven't had much luck. I use p4 for source control, and it's definitely it's connected (I'm able ton check out files and they show up on p4). I know the files are not writable to begin with, because editing the file gives me the 'Clear Read-Only Status' pop-up. I'm not sure the moment the lock icons went away for me, but I recall them being there when I was using Rider for Unreal Engine.