Last I heard, AngularJS support will end in July of 2021. The Camunda Tasklist web application is written in AngularJS and is recommended for green field projects. Does Camunda have any plans to release a new version of the Tasklist application in a supported front end framework, e.g. Angular? I do Camunda contract work and I know I will be asked this question.
There are plans for Cockpit. Tasklist is still open. You may find this helpful:
https://blog.camunda.com/post/2018/02/custom-tasklist-examples/