Q Should I use Gutenberg or Classic editor?
A Short answer – you can use both. Better Post Formats plugin works with both Gutenberg or Classic editor.
Q My current theme does not support post formats, can I use Better Post Formats plugin?
A Yes of course, even if your theme does not support post formats, Better Post Formats plugin will add support for audio, video, gallery, link and quote post formats.
Q I have set featured content, can I switch theme?
A Yes of course, plugin does not depend on themes, data related to plugin content is saved in database independently.
Q I have set featured content, but I can not see it on my website?
A Please try to switch to any default WordPress theme (TwentyX). If content appears on your website, most likely your previous theme does not use get_the_post_thumbnail WordPress function for featured image display.