There is an existing Idea (for the last 5 years in fact) that suggests the ability to fix the position of a horizontal scrollbar would be helpful. >750 votes and 5 ideas merged and still no update.
I am instead suggesting this is a defect and should be looked at urgently.
Bookmarking should provide functionality to bookmark EXACT views of visualizations. By selecting Data & Display a user can control what is fixed and what is variable with the bookmark and Display should preserve spotlighting and whether visuals are visible or not - this should include the scroll bar position as that is key to the visibility of a visualiztion.
Thank you for your feedback, but this is a feature that has not yet been improved, and the Issues Forum can only do some troubleshooting of existing features. More importantly, if a feedback is highly voted by other customers there, it will hopefully make the Microsoft product team take it into consideration when designing the next release in the future.
Community Support Team _ Ailsa Tao