Home window tinting can affect the growth of indoor plants, but it won’t kill them. While it’s true that plants need sunlight to grow, tints don’t normally block visible light (unless the tint is completely opaque). They’re more into the business of reducing heat, which can be a boon for plants since it prolongs moisture.
When plant are moist for longer periods, you can water them less often. Less watering ultimately means more savings. When plants wilt, it’s not so much because of less water but because the environment is simply too hot.
Photosynthesis demands light—not heat—to work. Which means when raising plants, you can do away with ultraviolet (UV) radiation. Home window tinting solutions are mostly concerned with blocking UV radiation, which is generally harmful against carbon-based life due to its uncompromising energy.
If you want to confirm how much your window tint affects your plants, have one plant protected by window tint and another exposed to direct sun. You’ll soon discover that an indoor plant will do fine in an environment filtered by window film. In fact, some plants that normally require more sunlight could adjust to a low-light environment; just give them a few days to settle in.