My question are they all using the same tech and if they are the same just different companies what new innovations do they bring?
Yes, they use the same technology in token standardization on Ethereum, but the case studies are different. We have tons of token case studies in crypto, the examples are DeFi, GameFi, Metaverse, RWA, DePIN, AI, and many more that may come. And of course, they should be from different companies with their own missions.
My advice, since you're a newbie, when you want to invest, make sure you have done due diligence on the project first, don't jump into a project that will just come and go like memecoin.