When installing the plugin in a clean instance many other uneeded plugins are also pulled in as they are detached since the jenkins version that the plugin targets. (or some plugins are not using optional extensions and pulling in the kitchen sink)

These are likely due to transitive deps on plugins, but there is no need at all to ever install PAM auth, or windows agents without an explicit opt in (Javadoc and ANT are also not reallyneeded).

It may also be possible to make some of the requirements for the code to be optional given that if you are using pipeline for the splitTests you do not even have/need any maven jobs)

Javadoc Plugin	Success
Maven Integration plugin	Success
WMI Windows Agents Plugin	Success
Ant Plugin	Success
Matrix Authorization Strategy Plugin	Success
PAM Authentication plugin	Success
External Monitor Job Type Plugin	Success
Run Condition Plugin	Success
Conditional BuildStep	Success
Parameterized Trigger plugin	Success
Parallel Test Executor Plugin	Success