jroddev PWA sandboxing and always private browsing. The problem I have is that if I use private browsing then I need to re-login every time I launch the PWA. So I have disabled the 'always private' option and just launch incognito tabs whenever I am browsing direct in Vanadium. This has the problem that if I click on a link in another app then it is launch in a non-incognito tab.
The other problem with PWAs is that they are not sandboxed from each other. If I have 2 PWAs their cookies are in the same cookie jar.
If I'm in a Discord PWA and I click on a LinkedIn link it will direct me to a logged in LinkedIn page with credentials from my separate PWA.
You misunderstand how sandboxing and cookies work in Vanadium and even in Android more generally. PWAs are sandboxed in the same way as any other website in Vanadium. You can disable third party cookies in Vanadium settings.
All that is happening here is that the webpage in Discord is redirecting you to LinkedIn because you clicked a link that opens a link in LinkedIn, the same as opening a link on a website.
Discord can't read the cookies for LinkedIn, and LinkedIn can't read the cookies for Discord, that's not how things work.