D&D 2024 is the result of the work that the designers Crawford, Perkins, and others did. Similarly, D&D 2014 is the result of the work that Mearls and others did.
D&D 2024 is a great game engine.
2024 is a great game, but so was 2014 and I don't know that 2024 is any better.
2024 has not been enthusiastically embraced by most of the community, reviews are mixed.
Personally for me it is new, it is different, but I don't know that it is any better than 2014. Some things are better, some things aren't better. Some 2014 problems were fixed, some 2014 problems weren't fixed, some new problems were created.