Do large companies use responsiveness in Web development?

are there many responsive programming at the front and back end of Web development in large companies?

take Java Spring as an example, how many companies use Spring WebFlux or Rxava or Vert.x?
of course, there are naturally asynchronous and non-blocking Go?

Mar.26,2021

I think you have a misunderstanding about responsive ? Back-end responsive programming, black question mark?

is there any analogy between Sping and Vert.x? Do you really understand these basic concepts and the application scenarios of these frameworks?

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