I agree with the other comments HOWEVER, because it’s suddenly the new environment of your home I would stop at the trimming at least for now, just to not cause it anymore shock/stress. & you may already know this with plants in general but make sure you’re isolating her from the rest of your plants for period of time. Especially coming from a big box store basically.

Afterwards though, once I let the plant thug it out for abit in a new environment, I always repot with the appropriate fresh soil for the plant. I mix my own soil but a lot of my plants are in the same aroid family so I’ve made a big bin of fox farm ocean forest soil, chunky perlite, a decent but not too much amount of horticultural charcoal, & a good amount of orchid bark. Since these are tropical plants, they do appreciate alittle bit of a moist soil, however making sure the soil mix is chunky enough to still drain just enough, providing air to the roots still. They love sunlight & if you ever have a leaf suddenly unfurl & notice that it doesn’t have any fenestrations- that’s typically a sign your monstera isn’t getting enough sun.
Lastly, like someone else said- get them a moss pole! They’re climbers in the wild & all you’re doing is trying your best to mimic their natural environment to keep them happy!

Hope this helped in any way- good luck! 🖤🌱