A seller(s) on Amazon may be selling fake PS4 controllers. I purchased one of these (I live in the USA) and there were a few telltale signs of it being fake: PS logo off-center, "digital" feel of the analog sticks, etc.
Link is https://www.amazon.com/DualShock-Wireless-Controller-PlayStation-Black-4/dp/B01LWVX2RG/ref=sr_1_2?dchild=1&keywords=ps4%2Bcontrollers&qid=1594699723&sr=8-2&th=1
Sony really needs to investigate, as customers are thinking these are real. Damaging the brand reputation.