I was testing new things in creative mode and i first started first with the sculk shrieker, when i first took it out of my creative inventory and attempt to activate it, it does not trigger anything to summon the warden, i even tried using sculk sensor from the creative inventory and the results are still the same and I started to wonder if it works the same for the naturally generated sculks and so I found the naturally generated sculk and attempt to activate the shrieker and the natrually generated shriker triggered the warning warning and eventually after triggering the shrieker multiple times the warden was summoned (along side with darkness effect in survival mode of course). I also had no experimental features enabled during these tests.