I know you’d rather see it native but if you’re open to sponsor its development, I could make a custom addon for that.
- complete inability to run code from the console into the content script context
- content script errors are not shown in the console, you have to open a separate Browser Console
- overall buggy dev tools (I don't remember anymore because I stopped using them a long time ago)
I guess every browser lacks something, it's just that we notice when we compare "my browser" to the next one.