All your fancy shampoos, body wash, and dish soap are exactly the same. Just different smells, colors, and water contents. Also, all mainstream brands are owned by a total of 3 companies.
Having just switched from Old Spice Swagger to SheaMoisture products I can assure you that 'different smells, colors and water contents' result in radically different outcomes in hair softness and smoothness!
If you’re using CG approved products this isn’t necessarily true. Highly recommend for anyone with even a tiny bit of natural curl, you might actually have some beautiful ringlets in there if you care for em properly.
This is only really beneficial for certain types of hair, and definitely don’t do it with conditioners containing sulfates, parafinss, or silicones. This site has a comprehensive list of products that aren’t filled with garbage what’ll leave your hair drier than it started.
If your hair is neither thick nor fine and you’re not having any problems with buildup or dryness, you’re totally fine to just keep doing what you’re doing. Also if you’ve got straight and/or short hair you can probably ignore the no-sulfates/silicones stuff.
Most hair care products are designed for a specific kind of hair, usually straight and pretty flat. I started using black hair care products and my hair went from wavy and frizzy to natural ringlets and only sorta frizzy! SheaMoisture is my personal favorite brand.
They are generalizing, because if you delve into non major brands some are glyvlcerine based some, have aloe base , oatmeal etc rather than ethylene glycol and sodium laurel sulfate type standards ingredients (coconut extract is that nautral source of sodium laurel sulfate, some natural branda might be actual cocunut milk, but many use manufacture chemical additive)