A year ago, Decidim, OSS "participatory democracy framework built" on Rails planned to switch from webpacker to jsbundling-rails because that was the "official" Rails way. After one year, they are moving to Shakapacker. https://github.com/decidim/decidim/pull/10389
I recently launched a Discourse powered forum to complement my blog at http://www.railsonmaui.com. I welcome any community contributions regarding topic of Rails and/or JavaScript client frameworks (React, etc.)