Missing skins after transition from OW1 to OW2

Hello, I am missing many skins after launching and merging ow2 after not playing since ow1 closed. My account is very old, I last played 2018 until recently. As such I don’t know which skins exactly I’m missing. ( I know for a fact I’m atleast missing lifeguard Cassidy, Young Genji/Blackwatch Genji) + many others. If there is a way to cross reference skins I have now to skins I had unlocked in the past and help me restore my past purchases from loot boxes I would greatly appreciate it!! Thank you.