Virtualbox 6.0.14 was released recently.
I’ve done the install on Windows 10, macOS Catalina and Oracle Linux 7 hosts with no drama.
If I’m being super picky, the scaling on Windows 10 is kind-of wacky.
Having said that, it seems loads of apps have weird issues when dealing with a laptop with a 4K panel, and a secondary monitor that’s not 4k (it’s 3440×1440).
I rarely open the gui, as I do most things with Vagrant, version 2.2.6 out now, so after this post I will probably forget this was even an issue… 😉
On macOS and Oracle Linux 7 hosts everything is visually fine.
The important bit is I’ve done a bunch of builds and not hit any issues. Happy days! 🙂
PS. Check out my Vagrant builds for Oracle 19c.
There is a video that shows you how they work here.