I got curious on the development problems found as well, @iAN-CooG.
So far, besides two annoying issues with the context-menu (which I'm glad we can edit!), I had to reset the DevTools settings, so React DevTools could show up (which I only discovered as a "solution" through StackOverflow), and the DevTools doesn't stick to the previous zoom level used.
Edit: being able to edit the right-click menu, while a bit confusing/cumbersome, turns out to be a solution even better than just having one-size-fits-all as we have on Chrome - which recently made the right-click menu bigger and inspect frequently overflows. Now I can place the Inspect options at top AND at the bottom! Yay for personalization!