Is starting FBA by Amazon still profitable/worth doing in 2021?

There are so many podcasts and blogs that talk about starting an Amazon business using Amazon FBA. I am wondering if it is still a profitable type of business? Some talk about making millions in such a business. I am wondering if this is true? I found some e-commerce tools on ProductHunt that are helpful to me, and I would like to recommend them here. AMzChart：https://amzchart.com/?utm_source... FindNiche：https://findniche.com/?utm_sourc... SellerCenter：https://sellercenter.io/?utm_sou... SocialNiche：https://chrome.google.com/websto... Maybe you have some tools that can help me? Or talk about your views on Amazon FBA.