Hello @user54664 ,
You're likely at a very specific zoom % for your particular browser screen view and device's resolution, causing the toolbar to run off the screen and require side-scrolling. Either zoom out (CTRL - on PC, CMD - on Mac) one tap so you can see the full toolbar, or zoom in (CTRL + on PC, CMD + on Mac) one tap so you can see the compacted toolbar with the three dots menu for expanded options.
As an example from my particular device resolution and browser zoom settings:
100% view:
125% view:
150% view:
... View more