I’m really sick of buying themes that rely so heavily on WP Bakery. It’s just lazy… the theme previews show all of these slick layouts. So you buy the theme and then find out that you have to be a wizard in WP Bakery which is SUPER CLUNKY. Half the time the author doesn’t even bother adding in WPB templates. Gutenburg is actually quicker and more nimble at layouts than WP Bakery… just venting, but I wish there was a way to filter themes to bypass lazy WP authors, i.e. theme does not use WPB. And yes there are some awesome WP coders out there that actually just use the WP architecture to achieve creative results.
The fact that theme uses WPB is usually mentioned in the item description, or just ask author via comments.