Hyperlinks not working.
 

I must have done something in setup and can't recall how to get back there, but all hyperlinks refuse to open now in the browser?

If you want to change your default web browser, you can do so by following these steps:
Open the Thunar Preferences window.
Select the "Web Browser" tab.
Select the web browser that you want to use as your default.
Click "Close".
Thunar will now use the selected web browser as your default web browse

Somehow you messed up how the OS tries to open a file association or messed up the install or location of the previous browser.

I have selected Brave as default already, could do that in previous V16.0