📚 Disabling dm-crypt workqeues doesn't work?

Kubuntu 22.04 with 6.5.0-35-generic.

I have exactly the same issues as this guy (ocasional 1-2s freezes druging some disk operations) https://discussion.fedoraproject.org/t/full-disk-encryption-performance-can-be-really-improved-in-nvme-and-ssd-devices/40525

So i followed this

https://wiki.archlinux.org/title/Dm-crypt/Specialties#Disable_workqueue_for_increased_solid_state_drive_(SSD)_performance_performance)

changed my crypttab

#home /dev/nvme0n1p3 none luks,nofail home /dev/nvme0n1p3 none no-read-workqueue,no-write-workqueue 

Restarted my laptop. But i still don't see those flags

$ sudo cryptsetup luksDump /dev/nvme0n1p3 | grep Flags Flags: (no flags)