If you don't know why this was downvoted - React rose to popularity in 2014-2015, and so my code from 2016 working correctly implies that the library has remained compatible with code written almost at any point in its lifespan.
Also, shouldn't "enterprise level software" prioritize new and improved ways of working for maintainability in 30 years anyhow? React & TypeScript is going to be a much more readable form of maintaining UIs than old-school template hodge-podge, direct HTML generation, jQuery, or whatever you want to point at. To that end, I answer "my React/TS code is more likely to work in 30 years than a legacy system being forced into the modern web world"
That is no time at all in "enterprise level software", being software with investment counted in millions of dollars.
What about your code from 1996? Will your React code word in thirty years?