Upgraded to 5.38.1, no Focalboard plugin option in marketplace

Want to use Focalboard with MM, follow instructions here:

But there is no focalboard option

Steps to reproduce
Follow instructions in the link above

Expected behavior
Ability to enable focalboard plugin

Observed behavior
There is no focalboard option

** Notes **
I’m assuming I’m doing something wrong. I have not installed focalboard because the docs seem to indicate the plugin will integrate it with MM. Maybe the issue is I do need to install it separately. Figured I’d ask here before duplicating work and confirm that’s the right path.