This is definitely not an XB, and if this is an XB to you I have plenty of XBs to sell you for good prices.
OP, from my personal experience (and talking to people working at arowana farms), lots of “fake” XBs and SRs are prevalent on the market as cheap aros.
Banjar Reds are usually Green X Super Red, the babies of these guys look a lot like regular SRs ( full red tails) as young fish but takes on the more classic Banjar colouring as they age.
Your fish looks like it was most likely crossed between a Green and XB/RTG/HBRTG. Same as the Banjar, the babies of these guys generally look like XBs as young fish. You can see the influence those have on your fishes genetics, his tail has taken on the dark dorsal fin much like regular golds. He may of looked more like an XB when he was younger, but I hate to break it to you that he’s not a 100% XB. Still a beautiful fish regardless, you don’t see this hybrid as much as the Banjars, but I don’t think he will ever achieve the golden tone you are looking for.