Actress Go Youn-jung appeared on RESCENE's "An-won-jal-bu"; is there an appearance fee in this case?

I assume the producer of "An-won-jal-bu" coordinated the schedule and YouTube appearance with Ms. Go Youn-jung's agency.
But if someone appears on YouTube, is there an appearance fee?
Also, Go Youn-jung gave furniture and pajamas to RESCENE as gifts.
In this case, wouldn't the furniture or pajama companies have provided them expecting an advertising effect?
Even for a very successful actress, the costs must be quite significant.
As expected, celebrities' spending habits are indeed
different from ordinary people.