Disable Compact Tabs in Safari 14 Beta

On macOS in the Safari 14 Beta 2, Safari defaults to displaying all tabs in the new compact style (only the favicon visible) whenever Show website icons in tabs in Preferences > Tabs is selected and a lot of tabs are open.
As this doesn't fit at all with my style of using Safari, I was looking for a way to disable this while leaving icons in tabs enabled.

Is there a way to disable the above mentioned behavior, maybe using the defaults cli command?

Disable Compact Tabs in Safari 14 Beta
 
 
Q