Amongst my clients I’m using Trello, Jira, GitLab, GitHub and Azure Devops. All of these products either have unique task identifiers built-in or a non-paid solution to activate unique id’s visible at project view level.
Your forum has many instances of users requesting this feature. You can add it as a hack so that if there’s responsive design issues about another element added to a “small card view” it’s on an opt-in basis.