I'm building a new site. And the question I see is; what modules will be porting to Drupal 9.
I realize you are still working on Drupal 8, but it's 2020. What modules will and which modules will not be ported to Drupal 9 is something I learned to ask.
best regards
Closed: outdated
1.0
Code
Not all content is available!
It's likely this issue predates Contrib.social: some issue and comment data are missing.
I've volunteered to help clean up the FullCalendar issue queue. As part of that effort I'm closing issues open for unsupported versions of the module as "Closed (outdated)".
If this issue is still relevant for version 3.x of FullCalendar, then feel free to re-open it and update the issue version number.