Steps to replicate the issue (include links if applicable):

• Affects most articles with many images, try the article NS Savannah
• While scrolling, if not careful, the page is not centered and will scroll / keep sliding right/left
• Scroll right then down all the way, now the page will be centered as it should, hinting at an image loading issue

What happens?:

My guess since the images don't load right away, something related is causing this behavior

What should have happened instead?:

Article to be centered even if images haven't yet loaded

Related:

Using the table of contents, the app no longer goes to the selected section, but misses it, again I think due to a change in image loading behavior

Software version (skip for WMF-hosted wikis like Wikipedia):

6.9.2 on iOS 15.5

Other information (browser name/version, screenshots, etc.):

Screenshot of the mentioned empty space causing the scrolling issues: