This is a task for tweaks to the default Workspaces and startup scene in Blender. Tweaking these is a bit tricky so it's best to do a bunch of changes at once - hence this list of tweaks:
- Timeline should have the Dope Sheet summary collapsed so you only see a single line of keyframes
- Cavity should be set to Screen Space (faster)
- Enable Syntax Highlighting
- Enable Line Number
- Enable Marker Lines
Motion Tracking and Masking
- Change default Pivot Point to 'Median Point'