Sechel…where to begin…
Rav shternbuch, aside from being an einikel of the gaon, is considered one of the world’s foremost authorities on the gra. He wrote teshuvos about the kol hator, as it was being used by zionists to spread their nationalist stuff. he proved that it was a forgery.
Next, most later achronim on shas skip almost all aggadeta; nothing specific to that gemara in Sanhedrin. The maharsha and maharal write on agadeta a lot on the daf, and there are many achronim who write on it in derashls(like yaaros dvash), but if you open a keren orah, aruch laner, etc…they skip the agadeta, as do almost all shiurim of roshei yeshiva.