There is a reason the supplement market is a billion-dollar industry and every dog in the world is humping a fire hydrant to be a part of it. NONE OF IT IS REGULATED. So, slap a label on it, make all the claims you want, and insure you have a catchy name and a great label/marketing scheme and then you can charge whatever you want. and it will sell.
Sure, there are benefits to some of the supplements, I won't discredit that, but not all of them. And many are all the same and have very little to offer other than a placebo effect. So, pick the best tasting, less flatulence causing one and get swole!
........ having said all of that,
I do take Krill Oil, Vit D, Magnesium, and a daily fiber supplement. If taking a protein powder, I prefer Built With Science or Transparent Labs whey protein. But I prefer to get the majority of my protein from meats, eggs, yogurt etc. I quit taking Pre-Workout years ago as I have never found them to have any added benefit for me. I do use LMNT hydration packets for electrolyte replacement.
It's amazing how much marketing b.s. convinces us we need stuff that we really don't. Most of all of this stuff isn't about health and what's best for your body, it's about making money................ but many can't see that.