yes I'm facing the issue with s9 plus

yes I'm also facing the same issue. also it shows fast charging but charges very slowly (slower than while running pie version). Also sometimes it won't show how much time left to fully charge the device.

is it possible to unenroll from beta now ?p.s. - I've not even installed the beta 1 update.

is this the final beta update ? Or there can be a 7th beta update before releasing the stable version?

I thought 6th beta was the last beta update.