Regarding tauri: One and a half years ago I looked into it as a potential alternative to using electron.
Back then I had to decide against it for my use case, because when the goal is that it’s a cross platform app, then one has to make sure that whatever “webview version” is used on all target OS, they all have to support the features one needs re one’s own app codebase.
Back then I needed some “offscreen canvas” feature that chromium supported (hence electron), but which webkit2gtk
(used on Linux) didn’t at the time.
https://tauri.app/v1/references/webview-versions/
So it’s not always easy to give a clear recommendation on using tauri over electron. One really has to get somewhat clear on what kind of “webview requirements” the resp. app will have.
But I do hope this will (or maybe already is) less of an issue in upcoming years (things are moving fast after all).
Somewhat recently I caused a failed kernel update by accident:
Ran system update in tmux session (local session on desktop). But problem was that tmux itself got also updated, which crashed the tmux session and as a result crashed the kernel update. Only realized it upon the following reboot (which no longer worked).
Your described solution re “live ISO, chroot, run system update once more, reboot” was also what got me out of that situation. So certainly something worth learning for “general troubleshooting” purposes re system updates.