Installed build 4419 (Plasma 6 Slim) on my HP Notebook, AMD A8 and AMD gpu.
Went smooth, no problems so far except the sddm issue logging me out after 1 1/2 min.
See: XLibre session auto-logout after a time - #7 by schappellshow
I use the work around for now.
Bluetooth works nice, better experience than with Rock. I use a Royal Kludge bluetooth keyboard, finding and pairing in seconds. Logitec wireless mouse works fine.
So far I’m fine with Rome. If something breaks I will post it.