The landing page and partially-reduced testcase render as-expected in latest Nightly 135.0a1 (2024-12-14) if I enable about:config pref layout.css.webkit-fill-available.enabled.
Bug 1918019 Comment 5 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
The unauthenticated landing page and partially-reduced testcase render as-expected in latest Nightly 135.0a1 (2024-12-14) if I enable about:config pref layout.css.webkit-fill-available.enabled.