My understanding of cultural appropriation is taking something that obviously belongs to a different culture and claiming it as yours or saying you invented it by giving it a new name or something and worse, making money out of it (in your new name).
This could be clothing, hairstyle, music, etc.
But a lot of what I see (when I happen to look because I don't really pay attention) people call cultural appropriation is someone for example like you've written OP, wearing a print s/he likes or hairstyle or something (usually knowing where it comes from but it doesn't really matter if you know or not) and not claiming to be the inventor of it.
I don't see appropriation there - you're not taking over.
The world is a big melting pot. I love indian sarees. I used to wear something similar back home to some events sometimes (and people will admire your 'Indian-style attire' or anyother outfit you choose to wear that isn't typical). I also used to wear the typical outfit of one of the different ethnic/cultural groups in my country and some would jokingly ask if I've joined that tribe, while admiring how nice it looks.
Most people in my country do the same - mix and match outfits from different cultures because you like how it looks. You don't go around claiming you came up with it, you just like it and use it or wear it.
I couldn't do the same thing here because of the accusation of cultural appropriation left, right center. It's madness!
To answer your OP, no it isn't cultural appropriation and most of what is being claimed to be isn't either.
It's a different story if it's worn to make fun of the culture - that isn't appropriation but "culturism" or racism.