If you are looking for the Greek version or retailers serving the Greek market, you can find the manga at:
While there isn't a single official property titled "GR Dragon Ball Super - 23 GR," this specific phrasing typically relates to finding or buying in Greek (where "GR" denotes the language/region). Dragon Ball Super Volume 23 Watch GR Dragon Ball Super - 23 GR
: Driven by fury over Pan's danger, Gohan unlocks his "Beast" transformation, a form hinted to rival or even surpass Goku's Ultra Instinct. If you are looking for the Greek version