My company gives me 1k/mo gift cards so i have to buy stuff i dont even need, so far hundreds of items no fakes that i could spot. I buy all types of stuff from all sections.
I did buy some jewlry as gift for 20€ that i later found on ali express for 50 cents but thats my bad i guess.
These days fake products are impressively good. I got a pair of earbuds on ebay to replace my damaged brand name ones, and upon closer inspection I realized the fake ones were made with a custom injection mold and if the electronics weren't rattling and the sound quality wasn't as bad, I'd fall for it.
I suppose it depends on the country, but at least in America the IRS would see right through the company considering $1k/mo in Amazon gift cards as a non-taxable "gift"
I did buy some jewlry as gift for 20€ that i later found on ali express for 50 cents but thats my bad i guess.