Honestly, if I could go back to when I was 22 and save all the money I spent on supplements I would. I still buy way too many but they are mostly health oriented. Outside creatine, protein, some health staples, and maybe a preworkout there is not a thing I would spend money on. But almost all supplements do very little. I agree they can be fun and motivate you a bit but that’s not worth it. Take the extra cash and buy better food like steak and continue the basics.
Some other supps people have mentioned can make a bit of a difference for people aging, closer to maxing genetic potential. But at 22, you are pretty much a hormone factory and will be getting the best gains of your life. Fuel the work with some staples and better food