> because in practice using a native webview loses a lot of the ostensible portability of a browser-in-a-desktop app (they claimed native webviews can differ a lot between OS's)

OS Webview fragmentation was my concern from the beginning, but got pretty much shushed away by tauri proponents. Funny how after years they also came to the same conclusion that a webview running on win8 and one on linux do not necessarily render/behave the same, and the amount of bugfixes/normalisation one would have to include is just to vast.

Still it might make sense if you exactly know the OS distribution of your user base.