Generally speaking there are no ill effects on house plants. Once your window film is installed, until your plants become acclimated to the new lighting environment there may be some slower growth and flowering. Fruit bearing trees may also slowdown in producing fruit as well, until they acclimate to the new conditions.
Some of your plants might appreciate the extra help. Plants, like people who sunburn, are at risk of damage caused by UV radiation.
The majority of all plants will do wonderful, and typically even thrive after a short time in the more favorable climate.
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