Atlassian post at https://www.jenkins.io/blog/2020/01/08/atlassians-new-bitbucket-server-integration-for-jenkins/ states:

Unfortunately, we also know that integrating Bitbucket Server with Jenkins wasn’t always easy

Well, now it's even more confusing as there's one more player in the game.

Please describe what this plugin improves over existing one (https://plugins.jenkins.io/bitbucket/ and https://plugins.jenkins.io/cloudbees-bitbucket-branch-source/) and if both can be substituted by this plugin.