I dare to post this here, even if it is about FRA but SK-specific.

As SK very often - in my experience - flies from busgates at B 1-15-something, there is no lounge – only if going through immigration twice and security once or to walk the long way to the (overcrowded) lounges around A24.

But with the opening of the new A Plus finger there is a new, much better possibility in case of B-departures.

After going through the new A-security, there is Senator to the right and a Business to the left. Nice, big ones.

From here you need to go through the A-B-tunnel, but time from lounge to gate would be 7-8 minutes.