Is buying fragrances off of like Temu and Ali Express always going to be fake? And if they are is it noticeable?

Specially for winter I keep and use only during cold months https://fragplace.com/en-GB/fragrances/28730/frederic-malle/musc-ravageur

Personally I like warmer vanilla fragrances.. currently obsessed with jazz club and by the fireplace by Maison margeila. Also loving Lord of Misrule from lush.. the peppery patchouli Gets me every time! Paired with a good body butter of course