Just got complete

I had the main game for a long time and just stopped playing and saw there is a complete version out. I just got it and saw you can’t gift anymore! Man that’s a total killer, I had sooo many gifts too!

Anyway, I saw at Whistle Pass you can have people show up. Is that like universal to everyone? Like if I go to the concert at 7pm, will I see other online people?

Also I’d definitely need some tips on what’s different from the base version vs the completed version