This simply repo shows the problem when installing the stimulus carousel and bootstrap.
It uses Symfony's new AssetMapper, so there is no build step.
git clone git@github.com:survos-sites/carousel-demo.git && cd arousel-demo
composer install
bin/console importmap:install
symfony server:start -d
symfony open:local
The arrow don't respond to navigating through the slide.
But if you remove the 2 lines that load bootstrap in assets/app.js, it does work.