Yep, I checked on Canary (mine is 65). I should've just straight test every option in that select rather than bothering you lol.
That option made it appear, thank you.
Btw, after I saw your console, I checked on my Canary :)
I still think the old filter (the same as currently in Network) is still the most efficient: takes little space (one line), easy to pick single or multiple options.
The current takes less space, but needs a lot more clicks.
I'd say this sidebar is in the middle, takes more space (has a min-width) but is easier to look and understand. While can't multi-select, it makes up by grouping by file source, which might be helpful (while console still points to the correct sourcemap :D ).