Chosen Solution
I stuck the sim tool accidentally in the microphone port on the Pixel 2 xl. Did i damage anything in the process? or waterproofing?
Make a call and / or a voice recording. If you can hear your recording, or if the other person can hear you when you call them, you will be ok. Otherwise, you’re going to have to replace the mic. Here is a Pixel 2 disassembly video. https://www.youtube.com/watch?v=ulvdK75y… Here is iFixit teardown for the Pixel 2 XL. Google Pixel 2 XL Teardown