Hi,
I have a huge Monstera Deliciosa. I bought it roughly 2yrs ago as tiny plant, and now it has become gigantic and its largest leaf is around 55cm (ca 21in). I am happy with it however, it looks to me like its pot has become too small as I can see roots poking out on top of the soil.
However, I don't want to repot it, as I already gave it a quite massive pot. I wonder if I could do the following: take the plant out of the pot, clean up the roots a bit and prune them, and put it back into the same pot? I think it would certainly work, BUT would my monstera produce again smaller leaves afterwards? I actually hope they still become larger with more holes

It's normal for monstera roots to poke out of the soil. Monstera and other hemi-epiphytic plants have multi- function roots. All of their roots are formed from their adventitious roots. This is because these are generally the first roots formed. The only time you will have a monstera with roots that immediately emulate the roots of a plant that has a single stalk and a root system is when you grow one from seed. None of the plants you buy commercially are seed grown. They are either tissue cultured or grown from vegetative propagation (stem cuttings).
The adventitious roots initially serve to absorb water and nutrients AND to anchor the plant onto whatever support it is growing on. They adapt and change over time once they reach soil and become subterranean. Then they produce softer thinner soil roots that take over the function of absorbing water and nutrients while the above ground roots harden and serve as anchors. They will poke out of the soil sometimes as part of their subterranean branching behaviors as the plant gets larger to further stabilize and anchor the plant. They will probably go back underground without your help

Hi Gina,
so does this mean I don't necessarily need to repot right now?
Do you know what happens if I would repot and put the plant back into the same pot after some root pruning? will it go into shock and produce small (juvenile?) leaves again or will it continue growing as before?

You should not root prune a monstera. I would just leave it alone

Hi Gina,
last time I repotted it (from a 20cm pot to a 40cm pot) I cut off some roots because the rootball was incredibly crowded. It didn't seem to harm my plant as it grew massive. Thanks for your advice, next time I will try not to prune the roots. However, how do I deal with the fact that there are more and more roots? if I never prune them, some day they will blow up my pot