Quote:Odd though, is this the default setting? I uninstalled GIMP and reinstalled, and like I mentioned, half the tools didn't work until I turned Dynamics Off.
There is a setting in Edit -> Preferences -> Tool Options "Save tool options on exit" By default this is on
Sometime in the past you enabled that dynamics option. The setting is held in the user profile C:\Users\"yourname"\AppData\Roaming\GIMP\2.10 This remains between installations, so that upgrading to a new Gimp version does not involve setting up your preferences from scratch.
If you need to reset it is in Edit -> Preferences -> Tool Options as well. Click on Reset Saved Tool Options to Default Values. Ok that, restart Gimp.