I understand.
But creating this type of plugin for other, not so popular emulators is a lot of work? Well, it's rare to find a frontend that does something like this. And if this feature were extended to other emulators, it would make LaunchBox even more prominent among frontends, in my opinion.
But what exactly do you call popular? Because the emulators Mesen, mGBA, Redream, Duckstation, among others, are the references when it comes to emulating their respective systems. PCSX2 is to the PS2 what Duckstation is to the PS1, for example.
And continuing on the subject, I have a suggestion. Wouldn't it be interesting to create a button in the emulator manager that says "Update All" (so we don't have to click on each one).
Or better yet, an added tool, perhaps in the same place where, once selected, LaunchBox would check for emulator updates after starting the frontend (but without blocking the user. Something running in the background).
In any case, congratulations to the developers. The frontend is excellent.