Pixelated/blurry font after update to 6.3

I’ve updated today from version 6.2.6 to the new 6.3 an expecting an annoy bug/issue.
I am running LibreOffice on macOS Mojave 10.14.6.

After the update the font is pixelated/blurry in all apps of LO. Enabling or disabling the OpenGL settings does not help to fix this issue.

Screenshot from 6.2.6:

Screenshot from 6.3:

Have anyone an idea to fix this or is this a bug, which should be posted at bugzilla? Thanks guys for replies!

Confirmed bug at https://bugs.documentfoundation.org/show_bug.cgi?id=122218