There were anecdotal reports about considerable decrease in engagement with some specific far right social media accounts. Those servers did not exclusively do search indexing. Also effects can be indirect as well, maybe via impacting general business life in Russia.I think at this point it is not clear if this really had a significant effect or not on the Russian Psyops.

The link you gave does not answer that either. Engagement does not necessarily contain "AfD". One would have to investigate a large number of individual AfD accounts and the different forms of engagement over time, if there was any significant impact on any of them.