I can only tell you what I have experienced and what has worked for ME. When I have had Monsteras in pots that were too small, the new leaves stopped sizing up and in some cases they even started to get smaller 🤯. In every instance so far, the new leaves started sizing up again and the plant had better growth after I repotted to an appropriately sized pot. It makes sense to me that MORE leaf volume (both the number and size of the leaves) would require MORE root volume to be able to support them. For that reason, I like to give my Monstera roots more room to grow when they need it instead of keeping them root bound just because someone on the internet told me to without giving any context as to why 🙃.

Everyone’s environment is a little different and what works for me may not work for you. Maybe you tend to over water your plants 🤷🏼‍♀️ 🌊 and in your case, you need to keep your Monstera root bound to keep it from rotting. Maybe you live in a really dry, arid environment and you need to keep your Monsteras in a more moisture retentive soil in a larger pot to keep them from drying up 🤷🏼‍♀️. All I’m saying is that there is way more nuance and context than what I can convey in a 60 second video. So don’t forget to think critically, do your own research, and make your own observations. Use what you learn to do what is best for your plants in your situation instead of blindly following