After almost 12 years I finally have my HDDs back from ICE. How to recover my bitcoin?

Back in 2011/2012 my place was raided by local cops and task force; they’ve finally decided to return all of my storage drives and cell phones after almost 12 years.…I remember having bitcoin in a electrum wallet….I don’t know the seed phrase. I was 17/18 at the time and I maybe had it written down but I also didn’t understand how crucial it would be. Especially 12 years later.

How can I recover what might be left on it? It’s at least 3 bitcoin minimum on it. Or did they seize that too. ( I was on Silk Road for sometime)