Metabox.io support for custom fields on posts (later on categories too & users) - ACF alternative

Metabox.io is used on wordpress, to add custom fields to post and custom post. The free version is already very good. And support also custom post type creation. It’s also possible to use an external database too. The pro version is simply awesome… Metabox is used in Bricks, Oxygen & Elementor. Pabbly must have this too!

More infos:
The first use is to have metabox custom fields on posts supported in Pabbly connect. (for edit post & create post).
Also I love using metabox to create relationships between Custom Post (so it can be good to have them listed when we use the wordpress edit/create post trigger too). Metabox can used on users too. So for editing users it can be good too. And maybe also a support for custom fields in categories/terms. (edit & list too).