If you need to rewrite everything every 5 years then you are making the wrong technical decisions up front.

Choose boring tech that doesnt change since its already mature and battle tested and because it is not beholden to the whims of some VC money or whatever.

React itself (not Next.js) doesnt change a lot and will let you run your app for the next decade at least.

Same with any boring PHP, Ruby, Python, Java, dotnet framework out there.

You might need to upgrade versions, but there will very seldom be breaking changes whete you have yo rewrite a lot.