This hourglass icon on loading tabs in v80 is ugly, how can i restore the previous animation ?

This one.

edit: animated version: https://i.imgur.com/K8oFk3b.png

I have tried with safe mode (extensions disabled), it's still here...

edit: solved: https://www.reddit.com/r/firefox/comments/igx73s/this_hourglass_icon_on_loading_tabs_in_v80_is/g2wkk2v/