Privacy Browser Android 3.19.2 was released on 10 January 2025. It fixes a layout problem with the bookmarks drawer on Android <= 10 (API <= 29). On Android <= 9 (API <= 28) there is an odd glitch (at least on my emulators) that causes the layout of the drawer to have issues when the app first starts until the keyboard is displayed once, which then causes the app to layout correctly.
It is unclear to me why this happens, although it has some relation to how the screen layout defaults changed when targeting API 35 in Privacy Browser Android 3.19 and how that affects older versions of Android, particularly unmaintained versions. At this point, visual defects like this on older version of Android will be addressed on a best-effort basis.
Additionally, the API 35 linked-to above also altered the behavior of full-screen mode on Android <= 10, both for full-screen browsing and when displaying a video, such that the navigation bar is no longer hidden. This doesn’t appear to be anything easy to address, although Google might fix the problem with an update to an AppCompat library at some point in the future.