• open a notebook on insiders.vscode.dev
• run a few cells
• pull latest changes - the notebook refreshed because of vscode-remote-repositories-github/issues/80
• scroll up

During the update/refresh and while scrolling, the notebook looks and feels bad. Markdown headers jump up/down and overlay. This happens everywhere: safari, chrome, edge, and desktop and isn't some random fluke but repros

Recording:

Selection of captures: