I’ve reported this kind of blatant incentivized reviewing to amazon and they don’t do anything. Both are items I bought and got an email and/or product insert that offered something free in exchange for a review. Maybe reporting to the FTC would be my next step if they were hurting my business...since amazon has incentives to not shut down sellers that still make themselves money.
Search “unbiased” on this one: zhAjh Womens Cotton Spandex Scoopneck Cap Sleeve Tee (Ex-Small, Dark Blue) https://www.amazon.com/dp/B071V8NHH6/ref=cm_sw_r_cp_api_vAHBBb78KHZRD
Search “review” in the reviews on this one: AKASO Brave 4 4K 20MP Wifi Action Camera Sony Sensor Ultra HD with EIS 30m Underwater Waterproof Camera Remote Underwater Camcorder with 2 Batteries and Helmet Accessories Kit https://www.amazon.com/dp/B076DD5JNS/ref=cm_sw_r_cp_api_nFHBBbASZF25K