you're not alone.
In order to meet the needs of some herbivores, almost the entire enclosure must be covered with forage plants. In the sandbox it doesn't matter if you turn off the comfort, but with the option on, it's actually impossible to create really nice enclosures, since almost the entire floor has to be covered by plants.
Then there is the fact that if you have several species in an enclosure, it doesn't seem to make any difference in which corner of the enclosure you plant the appropriate plants, since the dinosaurs, despite e.g. have a need for fruit, but also eat all other types of plants that are not decorative.
So to be honest I'm even for several different plant food dispensers. one for each type of plant and these can then really be used accordingly by the species that prefer certain ones. And maybe one that simply combines everything and that all species like to use
Not to mention that it's pretty unrealistic on the snow and desert maps if there are tropical plants growing out of the ground everywhere...