I think that the submission details could be popped up by clicking on a cell on the scoreboard like this.

But it seems that teams can only view the submission time and language (without admin right), the submission results (accepted, rejected or pending) can only get by polling scoreboard API afaik. So it may need to be implemented in the API.

This also seems to increase the complexity of the static scoreboard.

I believe an intermediate solution is to display the last submission time as that's probably the one contestants care the most about. This is also not restricted to frozen board only.

(Looks like this feature is also present in the picture above)

I think we explicitly removed the submission time as it clutters the scoreboard too much. If anything I'd prefer the solution @cubercsl suggests, but I'm not sure how much it's worth the extra complexity.

Maybe we should port a submission list twig and a controller to public.

I found partials/submission_list.html.twig in /jury and /team, so I tried to make a similar one in the jury scoreboard.

After IRL hackathon discussion we think that adding this on the scoreboard itself will clutter things too much. Adding it as a modal/popup as @cubercsl shows could work.