For a standard custom field, simply remove it from the "edit" screen.
I don't want to talk about other variations on this without a bit more information on what you're trying to achieve (telling you to do it in Behaviours when you actually would benefit from doing it in workflow would be a bit of a waste, etc)
I’m a designer on the Jira team. For a long time, I’ve fielded questions from other designers about how they should be using Jira Software with their design team. I’ve also heard feedback from other ...
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