Where are recently played videos being stored in the latest version?

[Kezzsim]

I've been using this plugin for a loooong time, presently the version I'm running in Home Assistant is working great!
I wanted to restore some songs I was listening to in a previous LMS instance to the "Recently Played" list, as I've done before when upgrading to a new server machine. Previously it had been stored in youtube.prefs in the recents: property.

After playing some videos, I see that the 'recents' section is still visible to me:

But I can't seem to find those in the youtube.prefs file:

Any idea where else it could be stored?