JAVA-5117 introduced Filters.eqFull because Atlas was not supporting the short form of $eq, and we couldn't change the behavior of Filters.eq (see https://github.com/mongodb/mongo-java-driver/pull/1200#discussion_r1327846683).
When Atlas starts supporting the short $eq form, which should be "soon", we can remove Filters.eqFull (marked as @Beta), because all deployments will get the update.