Gulp and grunt are not forgotten, some libraries and "legacy" projects still using these things for build.
Each tool for build application like gulp, rollup, grunt, webpack or parcel have own unique opportunities. For example gulp have ability of creating "custom" tasks which can do build or something else like logging. Webpack have ability to adding/creating custom loaders (not only webpack, but still).
And in summarize I can say that all things even not hyped still have popularity and unique features
I particularly liked gulp, it's not really in the same space as Webpack in truth. A bundler vs a task runner, a Car vs a Motorcycle.
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