I recently had an issue with a user deleting workflows because the designer buttons are available to users with edit permissions. I am not sure how the buttons are added to the command bar, but I can hide every button Microsoft offers. Nintex, however, does not fit into this mold. If I could move or hide the buttons using JSON and the commandBarProps would save a bunch of time with rework, that is, if the form is backed up./. That is another issue of Nintex how you can delete and poof, it is sent to a vortex, never to be seen again. and they still run as deleted associations. I do not want to get off-topic.

Is there a way to hide the Nintex Workflow and Nintex Forms buttons?

Note: This is not in the ribbon; this is SharePoint Online and the Command Bar.