iPhone 6s with iOS 14.2 Issue

I have an iPhone 6s, and I recently updated to iOS 14.2. Today, I noticed a few of my apps (but not all of them) stopped working. If I try to open Snapchat, Spotify, Gmail, or Venmo, they immediately crash and I can’t open them. I have already tried the usual fixes like restarting my iPhone, completely shutting it off and turning it back on, deleting the apps and reinstalling them, making sure those apps were up-to-date, etc. Nothing has worked. Also, I know it’s not an issue with the apps themselves because I was able to sign into these 4 apps on my friend’s phone as a test run. Because of this, I believe it is a software issue. Please help me fix this because it is extremely frustrating.