It doesn't look that bad on the injury front. That ACL injury made him miss a full season, which is certainly a worry, but in 2021/22 he didn't miss many matches due to injuries.
In Serie A he played in 28 and didn't play in 10 matches, but only 4 of those were due to injuries, while 6 were due to accumulated yellows or a red card, as well as due to him being an unused sub.
In Europe he played on 12/15 matches, and he missed only 2 due to injuries (on one match he was an unused sub). In Coppa he played 2/2.
To sum up, he missed only 6 of 55 matches last season due to injuries, which is a good sign for a player coming after a whole season out.