Found via profiling.
When you have both paragraphs and webform_node active, anonymous users trigger ::getParagraphWebformsRecursive() via webform access checks - this is because the test form is in a local task for any node.
🐛 getParagraphWebformsRecursive causes slow load times Needs review should optimize the recursive webform lookup but I think it should be possible to skip this access check for anonymous users. Not entirely sure what the use-case is for the route but switched the access check to match other similar ones.
Active
6.3
Code
Not sure if that access change is the right one, but it does prevent the logic from running for anonymous users.
We can't change the access checks for the 'Test' task without causing regression for existing implementations.
We probably need to focus on 🐛 getParagraphWebformsRecursive causes slow load times Needs review