An app changed file associations without my permission - how do I restore them?

I installed an AI coding IDE by dragging it to my Applications folder. As soon as I opened it, it changed my Finder such that all .md, .json, .txt etc. open with this new app instead of others. I do not remember giving permission to this app to make those changes. How do I revert the file associations/"open with" settings without uninstalling this new app?