Hi brikuz20,
to the site!
Is it possible to upload a photo showing how your Monstera is potted? Fungus Gnats are usually a sign of soil that is staying too moist. Although the adult gnats don't harm the plant, they are certainly a nuisance to have around. Often, allowing the soil to dry for longer periods keeps these pests at bay.
Here is a link to an onsite article about houseplant pests and their control. Scroll down the page to read about Fungus Gnats:
https://garden.org/learn/artic...