You can't trade him in the offseason. Without seeing him play, you are not going to get the kind of offer his draft position (and pre-injury talent level) demands. I think a 3rd round and maybe a late pick might be your ceiling. It's too much of a risk for teams to give up significant picks without assurance he can be the same player.
The most likely scenario is that the Commanders exercise Young's 5th year option. They have to make that call in early May 2023, so they'll have to do it with limited ability to assess his recovery.
If they do that, it opens up two possibilities. If he returns to previous form and looks to have fully recovered based on his 2023 play, you do a 2nd contract or you now can trade him after the 2023 season and expect to get good value for him. If he looks bad, you pay him for that 5th year and then release him.