The plugin error view has been completely rewritten with actionable guidance for each error type. Errors now show the source scope (user/project/local/managed), provide specific remediation actions (navigate to settings, remove marketplace, contact admin), and allow direct resolution from the error list.
Evidence
Error UI (search for "Managed by your organization — contact your admin", "Restart to retry loading plugins")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.