AngularJS officially went EoL on July 1st, 2018. June, 2021 is simply the end of the LTS period.
This is why no one should use any of these frameworks, imo. The same will happen to React, as well. Just watch. Learn what they're built upon, or something else completely, otherwise you'll be swimming up s**ts creek to find decent work.
As a side note: Vue.js may be the only viable candidate for the longest life, and is geared more towards supporting various approaches as opposed to requiring them (such as TypeScript.)