Why do many of my RG observations not end up in GBIF (as per the iNaturalist "Year In Review" page stats)?

Please note there are other problems with other numbers of the “Year in Review” page as well:

https://forum.inaturalist.org/t/discrepancy-between-number-of-gbif-observations-on-inaturalists-user-year-in-review-page-versus-number-in-hyperlinked-page-i-e-observations-page-of-that-user-year-i-e-with-verifiable-any-outlink-source-gbif-even-after-regenerate-stats/78366/4?u=vincent_mia_edie_verheyen