I loaded the patch, launched the launcher, logged into my account, but cannot reach character selection page. Just the endless spinning ESO wheel trying to load it.
Long or infinite loading screens can be caused by a few different things from permission issues to add-ons. There are a few troubleshooting steps you can try listed below that can help with getting the game to load.
Remove Add-Ons
To fully remove your add-ons, do the the following in this specific order:
Exit the game
Navigate to C:\Users\<username>\Documents\Elder Scrolls Online\live in windows explorer
Rename Addons to Addons.old
Rename SavedVariables to SavedVariables.old
Check in-game to see if the if the issues persist.
Add Anti-virus and firewall exceptions
The application files that may require exceptions are: