Both editions of Minecraft are coming to Windows PCs for free as part of Game Pass on November 2nd
May be November 3rd due to time zone differences
I believe they will come with a unified launcher but don't know the technicalities of signing up for a username on Java edition (likely going to be related to MS account)
You probably own the game already but is a great addition nonetheless, especially for those who want to try the other edition to play with friends or family
Unlucky for those looking to be gaming during lockdown (but hey, the grind never stops!)
May want to combine with this deal, if you are looking to stock up on your gamepass sub