If you live in California (and a handful of other states), these HOV stickers are highly desirable, so why not learn the right and paint-safe method of application.
These stickers are designed to stay put, but if they ever have to be removed, paint damage is possible. There's a method to prevent this possible damage though.
OCDetailing presents this video to show proper HOV sticker application on a Tesla Model 3, though this method can be used on any electric car.
Tesla Model 3 - The Best Way to Apply HOV Stickers