If you wish to add comments in Forms, please follow the steps below:
The Comments feature is currently available only when using Forms in Side Panel mode.
Step 1: Enable Comments in SharePoint > List Settings:
- Go to your SharePoint list.
- Select the cog then List settings.

- Under Advanced settings, ensure that the option Allow comments on list items is set to Yes.

- Click on KWIZ Apps in the ribbon to open the KWIZ Apps settings page for the list.

- Select KWIZ Forms Display Mode.

- Choose Side Panel from the available options.

Once the form display mode is set to Side Panel, the Comments section will appear in the form ribbon, allowing users to add and view comments on individual list items.