What is the best all-around lens for a Canon R6 if I only have like a week to grab one?

Im honestly so torn right now because I have a wedding to help shoot in Montana next Thursday and I dont have a solid general purpose zoom yet. I read the RF 24-105mm f/4L is the go-to but then I see people saying the 24-70mm 2.8 is way better for the dancing and low light stuff and now im just stressed. I cant afford the 2.8 and the f/4 seems okay but will it be too slow for indoors? My budget is capped at $1100-ish and I need to pull the trigger tonight or tomorrow.