Barr lied to the public about what was in the Mueller report... and then lied to the court.
I may be wrong but I'd bet Garland has an unredacted version of the report because Barr didn't destroy it. Barr didn't end anything and he could have destroyed whatever he wanted so I think his job was to protect a hopeful next Admin's ability to carry forward. It would be necessary for such a position to seem very much like he was protecting 45 so that doesn't convince me that I'm wrong.
It's about time someone started looking into his crooked deals while he was fronting for Trump.