New Notification flow -> matrix [element] notify possible?

Hey congrats to Hub20!

With Talk 10 NC20 will be able to bridge Users from Talk to Matrix. Nice!

With Hub20 you enabled a notification flow for several events on nextcloud.
I’m on stable channel so i don’t want to force an update from 19.0.4 to 20.0 before your point release is online. But my question is, will it be possible to get notifications in matrix (own synapse homeserver) by using the new notification flow in NC 20.x ?

That would be great deal!!

Thanks for infos.
Regards chrissi

Anyone here who already uses Hub 20 and matrix?

Would be glad to read that it is possible - maybe one of the devs here?