OpenSource-Ghost If Vanadium is disabled, GOS App doesn't detect when WebView and Trichrome are out of date. Basically, there is no way to get WebView and Trichrome Library updates if Vanadium is disabled. I am sure they are separate packages.
rustybird Could be related to https://github.com/GrapheneOS/Apps/issues/296 In that ticket Apps detects that an update is available, but fails to install it (either automatically or manually), showing a "Missing dependency" error.