User UID Changed - Help Resolving Permissions Issues

I recently changed the UID of my Ubuntu user account from the default of 1000 to 501, in order to sync it up with MacOS and hopefully avoid permission and ownership issues on shared drives. I did not change the Group ID (leaving it at the default of 1000). Everything seemed to be working fine at first after changing the permissions, but I've now noticed some strange issues popping up that must have to do with it. Some examples are the Ubuntu software updater "failing to download repository information. check internet connection" (network is fine and works) and mounted FUSE exfat-formated drives give an "unknown file type" error when opening them in Gnome. Both worked fine before the permissions change. I'm sure more issues will pop up. As a noob, I'm not sure what to do to troubleshoot this and fix it (or even revert the permissions change if needed)?

For background, I ran a 'chown -R username' on the home directory after changing the user id, but that is all I have changed. Are there some other commands that I should run, or other files/directories outside of the home folder, that need to have permissions/ownership updated after the user id change?

Any assistance would be greatly appreciated.