"There is no time limit for the review process as accuracy is more important than speed" -IFAB

Any match changing decisions/incidents reviewable by VAR can be reviewed even after the restart.

So because the handball happened prior to the referee blowing for full-time it allowed for VAR to check the incident.

https://www.theifab.com/laws/chapter/38/section/136/

"There is no time limit for the review process as accuracy is more important than speed" -IFAB

Any match changing decisions/incidents reviewable by VAR can be reviewed even after the restart.

So because the handball happened prior to the referee blowing for full-time it's allowed for VAR to check the incident.

https://www.theifab.com/laws/chapter/38/section/113/