Just noticed a slight lag/bug with the extensions on the latest Brave revision 0.22.714. When clicking on an extension on Brave GUI, it stutters slightly creating a frame, which then populates the extension GUI after 1-2 seconds. Happens with all extensions, so not specific to a particular one.
Also there is a blank tag visible when hovering over some of them displaying the text of the extension name and a prefix & suffix tag:
i.e. " [FSI] [PDI] ".
Not sure if that is normal.