is this a christmas movie?

"Go" is a Christmas movie.

Not IMO.

Nah, they have one scene with them wearing Santa hats for a brief moment and that was that.

It could be debated since this occurred on New Years Eve six days after December 25th, but it doesn't feel Chirstmas-y to me.

More like a New Years Movie

If anything, a New Years movie. I don't think Christmas is actually mentioned, other than that scene with them wearing the hats that someone else already mentioned here.

I have noticed some Christmassy things in it but they are blink and you'll miss it moments.
Tan lights in the trees in the garden next to where Dana talks to the Building super intendent.
A Christmas tree in Egon's lab when Dana visits him.
A wreath in the offices of the studio Peter works in.
A small Christmas tree decoration in Ray's Occult Shop.
The Snow Globe Peter looks at in Dana's apartment.
Christmas trees are being sold in the background when they scan the street for paranormal things.
A Christmas tree is in the store window in a scene durring the montage.
A Santa is collecting money for Charity in front of the Museum Dana works at when Peter goes to visit her there.
A wreath is on the wall behind the Security Guy who Peter talks to.
A Santa Claus decoration and silver Christmas Tree are in Peter's apartment.
2 Christmas trees are behind Peter outside the business he is standing at when the other ghostbusters drive up in the ecto 1 to see him.
The restaurant Peter and Dana are in have Christmas lights and a Christmas tree set up.

I think it’s a Christmas movie as there’s references to it being during the Christmas season plus the final act is on New Year’s Eve.

christmas to new years movie