SkyTeam - Heathrow terminal 4 lounge

I understand the Holideck Lounge is closed at Terminal 4. What are the alternatives? I am flying with KQ

Skyteam opened a dedicated Skyteam lounge in Terminal 4 about a year or so ago. One of the best lounges the world of frequent flyers has to offer. Great design, nice food, great selection of drinks. Enjoy!

The SkyTeam LHR T4 lounge is wonderful. However, pretty sure you've got to be ST E+ (or the equivalent with a non-ST carrier, such as SV, using the lounge) or flying in business class. OP, do any of those apply to you? If not, you might be out of luck, as PriorityPass tells me the 4Deck lounge has closed, and I don't think there were any other pay-per-entry lounges in T4. Also, welcome to FT!