All my projects are biased with regard to places, because I started downloading observations 2 years ago, country by country and state by state, and recently I added all observations I add in cache into projects. Moreover, I have focused recently on Southern Africa.
There is no bias only with observations that have no identifications and that “needs ID”:
https://www.inaturalist.org/observations?identified=false&quality_grade=needs_id
All these observations, older than 1 month, have been checked and have been pushed to one of the yellow or blue projects.
The yellow projects are phylogenetic projects (about 1,000 projects) and a few non-phylogenetic projects (Trees of Southern Africa 1 and 2, Pre-Maverick).
This journal post provides the list of all phylogenetic projects.
And there are 3 umbrella projects for grouping all phylogenetic projects (for filtering, or statistics):
https://www.inaturalist.org/projects/all-phylogenetic-projects-a-i
https://www.inaturalist.org/projects/all-phylogenetic-projects-j-s
https://www.inaturalist.org/projects/all-phylogenetic-projects-t-z
The blue projects contain observations that cannot be added to traditional projects or that I decided to exclude from the yellow projects (editorial choice):
https://www.inaturalist.org/projects/observer-only-allows-other-people-to-add-their-observations-to-projects-they-have-joined
https://www.inaturalist.org/projects/observer-does-not-allow-other-people-to-add-their-observations-to-projects
https://www.inaturalist.org/projects/user-has-opted-out-of-community-taxon-observation
https://www.inaturalist.org/projects/user-has-opted-out-of-community-taxon-collection
https://www.inaturalist.org/projects/no-evidence-for-an-organism
https://www.inaturalist.org/projects/copyright-infringement
https://www.inaturalist.org/projects/the-community-taxon-is-as-good-as-it-can-be
https://www.inaturalist.org/projects/no-computer-vision-suggestions
And there is this umbrella blue project:
https://www.inaturalist.org/projects/exclusion-list-for-phylogenetic-projects