What do you mean by "commenting on a project"? JIRA Projects does not have comments, JIRA Project issues does.
Assuming you meant JIRA Project issues and by "tag" you mean by @mentions? As you can see, it will only work with single JIRA accounts, not user groups or roles. What's your use case here? So that a group can be notified? You can create a "generic" JIRA account that will have a team's distribution list as its email so that by mentioning this account, you will send an email to the distro list.
Is this been improved or added on in any way? I to would like to create a group or email group to mention with @mentions and I would prefer to not have to create an account to. There should be a way to create a project email group software team group so that if I want them all to see a comment I can simply just @SoftwareTeam or something of that nature.
Go to MORE in toolbar top in Jira.
In this page you can see Start A Team icon. Click that
You are set now! Who all team mates you invite and if they accept your invite will be activated.
And in future, if you want to mention/tag your teammates in a message you no need to mention them Individually. You can mention/tag the team name so everyone in the team who accepted the invitation link will get the notification
In Jira Server, you can actually manage these groups with Distro lists in Google Workspace for example.
You add the users to a group, e.g. email@example.com.
Then add that group as a normal User in Jira.
This allows you to tag the user, e.g. Project A, and they all get notified of the ticket.
They will need individual Jira accounts as well of course, but this solves the User Group tagging issue that Cloud has and Server lacks.
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