I used to be able to move my mouse to the right side of my screen to click the scroll bar and move down. Since a few updates, I can't anymore because the scroll bar is thinner and doesn't extend to the border of the screen, and I instead have to aim for it which is much less user-friendly.
Please bring back the old scroll bar.

When you are inside a split screen, press Ctrl + Tab, it sends you to your latest opened tab, as expected.

I would expect pressing Ctrl + Tab to reopen the split screen, but instead it opens another "single" tab, and I cannot go back to my split screen with Ctrl + Tab.

I used to be able to move my mouse to the right side of my screen to click the scroll bar and move down. Since a few updates, I can't anymore because the scroll bar is thinner and doesn't extend to the border of the screen, and I instead have to aim for it which is much less user-friendly.
Please bring back the old scroll bar.