GrapheneOSuser74 Strange. Here are some things to try if you haven't done so already.
Clear the app cache.
Go to Settings > Apps > All apps and find the app(s) that increased size. Tap on Storage > Clear Cache.
Check for app updates.
Sometimes updating an app will do the trick.
Uninstall and reinstall the app.
By uninstalling and reinstalling the affected app(s) you may be able to reset the size.
Free up Device Storage
If device storage is getting full, it can affect app performance
Factory reset (last resort)
If nothing seems to be working, you can always do a factory reset. Keep in mind this will erase all data off the phone so make sure your Phone is backed up first.
Thats just a list of some things to try. Hope you can get it figured out. :)