Where to report Plone 6 front-end issues

What is the best place to report Plone 6 report front-end issues? Should they be reported to the CMFPlone issue tracker or brought to the theming issue tracker?

If in doubt always Products.CMFPlone. If its Classic UI be aware we are not finished and I would wait if the upcoming merge with ES6 branch may fix it. Also, always check the latest buildout.coredev - alpha2 is outdated. In any case it would help to add it to the project board as well https://github.com/orgs/plone/projects/11