1. i would make the the welcome dialog just 2 lines bigger in y, so you can get rid of the scrollbar completely
2. the tutorial window is (in my case) docked at the very right side of the editor and squashed
3. when the tutorial window gets smaller in y, there's some layout issues with the menu bar on top.

@gopher-atz I agree with you but we do not control the size or position of those elements. They're managed by the tutorial framework and tutorial authoring tools packages, internally.

On 1: What we can do is removing 2 lines from the welcome dialog. Here's the updated copy.

On 2: the docking to the right of the inspector is the default In-Editor Tutorials behaviour. To solve the squashing I can try setting a project layout that is loaded automatically at startup, and give more space to the tutorial window there.

This is how it should show up now, can you have another look? (Tutorials > Authoring > Debug > Run startup code)

On 3: it's an IET bug that should be addressed cc @guillaumed-unity