Hi there,
I just switched over from Arc browser because of multiple reasons but there is one feature I'm really missing, which is the pinned tabs/favourites (also per profile) at the top of the Arc sidebar; this allows me to quickly go to certain, frequently visited websites and these tabs will stay there saved in my profile. The current pinned tabs in Orion will go away when restarting the browser. Also, the icons are a little bit small for my liking...
Users can quickly switch to frequently used favorites/tabs, just like in Arc it stays saved with your profile.