Of course, we won't be able to tell the real effects, now, because every longitudinal study of researchers will now be corrupted by the ongoing evisceration of academic research in the current environment. Vibe-coding won't be a net creativity gain to a researcher affected by vibe-immigration-policy, vibe-grant-availability, and vibe-firings, for all of which the unpredictability is a punitive design goal.
Whether fear of LLMs taking jobs has contributed to a larger culture of fear and tribalism that has emboldened anti-intellectual movements worldwide, and what the attributable net effect on research and development will be... it's incredibly hard to quantify.