Shameless plug, but I’ve also created a chrome extension that adds some shortcuts to the identify modal, principally “v” to mark an observation the community taxon cannot be improved: https://forum.inaturalist.org/t/new-chrome-extension-to-select-that-the-community-taxon-cannot-be-improved/47239/14
Anybody is also welcome to also reuse my code to include in their project.
There are also another other chrome extensions created by @sessilefielder : https://forum.inaturalist.org/t/inaturalist-enhancement-suite-chrome-extension-v0-7-0-identifier-stats/44002