I've kept them in planted tanks and they've been no problem. You must be aware that they have sexes, and females will sometimes lay eggs. They lay above water, a pale pinky or beige clutch, can vary from a half inch to two inches long, half inch wide or so. If you don't want babies, you can drown the clutch and then toss it, or crush it and toss it. It will be kind of gooey inside if you crush it.
If there is no bare glass above the water for them to lay on, and no cover on the tank, they have been known to crawl out seeking a place to lay and they can fall. The fall may damage them, and if you don't find them soon enough they may dry out. Either can be fatal. If there is a cover, they'll lay on the underside of it. Residue from the eggs is not that hard to remove, usually a damp rag will do. Might need to scrape very dry residue if you leave it for awhile.
So long as they are not starving, they don't eat plants. And when they do nibble, it is almost always on something floating. Salvinia & duckweed, frogbit, are the kind of thing they might eat fresh. But they won't eat much.. I have dozens of them in one tank, where I raise them, and maybe one frogbit leaf out of fifty gets nibbled now and then. They prefer salvinia over anything else and even that, one leaf now and then.
So long as they have food, [and they will eat leftover fish food, algae tabs or pellets, dead fish or shrimp or other snails, dead plant matter, even some fresh veggies ] then they are fine. They keep glass clean, and will clean off plant leaves too. They will crawl over plants and it may look like they are eating them but in fact they're eating the biofilm or algae off the leaf just as they eat it off glass.