I'm here today (Wednesday) from 5pm to midnight, SG time. Nowhere near as busy as one might think given all the negative press lately. Tonnes of food, plenty of seats in any part of the lounge, don't have to wait for anything.
There's also a ton of staff on hand to do food prep and cleaning, it's not short handed at all.
They are opening the first class lounge in 2 days from now, so I would imagine the situation will be even better very soon.
Update: After 10pm the lounge for sure has come more busy, though there's still space to sit (maybe say 2 to a table or something). I'm guessing a lot of overnight passengers.